Read the article HERE and find the definition of the following terms. Make sure to click on NEXT at the bottom right of each page to continue with the article.
1) What is a Codec?
2) What is compression ration?
3) What is Lossy/Lossless?
4) What is Bit Rate?
5) What is VBR?
6) What is CBR?
7) What is Sample Rate/Bit Depth?
8) What is Dynamic Range?
9) What is DCT?
10) What is ID3?
11) Name 5 major Audio Formats and define each one.
Audio Technology 
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November 12, 2009 at 10:29 am
Ivan
1) An algorithm used to compress data and then decompress it again.
2) This is the ratio between the size of the original uncompressed audio clip and its compressed version.
3) Lossy compression is that which actually removes some information in order to make the file easier to compress.
4) The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6)Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7)Sample rate refers to how many times per second the original waveform is translated into digital form.
8) In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9) DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) MP3, MP3 Pro, WAV, AAC, WMA
November 12, 2009 at 10:37 am
Rogelio Perez brenda abreu luis serrato
1) What is a Codec?It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2) What is compression ration?Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3) What is Lossy/Lossless?Digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossy compression is by far the most popular format, because it allows for much smaller file sizes
4) What is Bit Rate?The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) What is VBR?The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
6) What is CBR?A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
7) What is Sample Rate/Bit Depth?Sample rate refers to how many times per second the original waveform is translated into digital form.Well, according to the Nyquist Theorem, you need twice as many samples per second as the frequency you’re trying to digitize.
8)What is Dynamic Range?this is the range from the softest to the loudest sound a system can reproduce.
9) What is DCT?Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines. iDCT is Inverse Discrete Cosine Transform, which is basically just a means of taking the weighted sum of cosine data and turning it back into a waveform
10) What is ID3?he tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) Name 5 major Audio Formats. there are mp3This, along with the relative high speed of encoding and decoding, has made the format popular with end users, but not with record labels, MP3pro Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf. It claims to offer equal sound quality at half the bit rate of regular MP3. While this is certainly subjective, it does sound a lot better at very low bit rates,WAVWAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ,AAC he AAC format can support up to 48 full frequency sound channels, so 5.1 or 7.1 sound is entirely possible, and WMAormat has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
November 12, 2009 at 10:38 am
Peter Robledo
1) Codec: Any time digital audio is mentioned, this word gets thrown around.
2) Compression Ratio: Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3) Lossy/Lossless: Digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress.
4) Bit Rate: The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) VBR: These common acronyms stand for Variable Bit Rate and Constant Bit Rate, respectively.
6 ) CBR: These common acronyms stand for Variable Bit Rate and Constant Bit Rate, respectively.
7) Sample Rate/Bit Depth: These are the most basic specifications of all digital audio files, compressed or not.
8) Dynamic Range: In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9) DCT/iDCT: Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) ID3: The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) -MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, Layer 3.
-MP3 Pro: Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf.
-WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds.
-AAC: Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.
-WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
November 12, 2009 at 10:41 am
Fernando Garcia
1.Any time digital audio is mentioned,this word gets thrown around.
2.simply put, this is the radio between the size of the original uncompressed audio clip and its compressed version.
3.Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6.f you have a 128kb/s CBR music file, it will use 128kilobits to describe the audio in each second of the song, regardless of what sounds are playing that second or the complexity of the audio stream at the time.
7.These are the most basic specifications of all digital audio files, compressed or not.
8.n layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9.Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.mp3,mpr pro:,wav:,aac
November 12, 2009 at 10:48 am
esteban marcelo
1. Any time digital audio is mentioned, this word gets thrown around. It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again
2. Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy compression is that which actually removes some information in order to make the file easier to compress.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7.These are the most basic specifications of all digital audio files, compressed or not.
8.n layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9.Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.Windows Media Audio 9,Windows Media Audio 9 Professional,Windows Media Audio 9 Lossless,Windows Media Audio 9 Voice, and RealAudio.
November 12, 2009 at 10:49 am
Ivan
1) An algorithm used to compress data and then decompress it again.
2) This is the ratio between the size of the original uncompressed audio clip and its compressed version.
3) Lossy compression is that which actually removes some information in order to make the file easier to compress.
4) The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6)Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7)Sample rate refers to how many times per second the original waveform is translated into digital form.
8) In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9) DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) MP3( It was developed in the late 80s by the Fraunhofer Institute in conjunction with the University of Erlangen.), MP3 Pro(Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf.), WAV(The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds.), AAC(Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997. ), WMA(Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.)
November 12, 2009 at 10:52 am
Priscila Pompa and Maria Perez
1. an algorithm used to compress data and then decompress it again
2. the ratio between the size of the original uncompressed audio clip and its compressed version
3. lossy compression is that which removes some information in order to make the file easier to compress. lossless compression is just what it sounds like- a way of compressing music into a file that, when played back, is absolutely identical to the original
4. how many bits is used up in a given interval of time
5. a bit smarter
6. the most common–they use up the exact same amount of data from one moment to the next
7. refers to how many times per second the original waveform is translated into digital form. bit depth is how many bits are used to describe each of those samples
8. this is the range from the softest to the loudest sound a system can reproduce
9. a technique for representing waveform data, such as audio waves, as a weighted sum of cosines
10. The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment
11. mp3, aac, wma, real audio and mp3 pro
November 12, 2009 at 10:54 am
Jonathan Lopez & Sandra Calderon
1.Codec is an algorithm that used to compress data and then decompress it again.
2.Compression ration is the ratio between the size of the original uncompressed version.
3.Lossy is that which actually removes information in order to make the file easier to compress.
4. Lossiess is a way of compression music into a file that when played back is identical to the original.
5. Bit Rate is the amount of bits it uses up in a given interval of time.
6.VBR is is a music file
7.CBR is sound file
8. Sample Rate is the times per second the original waveform is translated into a digital form
9. Depth Rate is the number of bits used to encode the file.
10.dynamic range is the range from the softest to the loudest sound a system can reproduce.
11.DCT is represents waveform data.
12.ID3 is tag embedded within an mp3.
13.MP3,MP3 Pro,WAV, and AAC are the five major Audio formats
November 12, 2009 at 10:55 am
Alfredo Velasco & marina Ornelas
1)codec:any time digital audio is mentioned, this word gets thrown around.
2)compression ratio:simply put, this is the radio between the size of the original uncompressed audio clip.
3)lossy/lossless:digital sound fomats are divided into two types:lossy compression is that which actually removes some information in other to make the file easier to compress.
4)bit rate: the bit rate of a digital file is defined as how many bits it uses up in given internal of time.
5) vbr: these common acronyms stand for variable bit rate and constant bit rate.
6)cbr: these common acronyms stand for the variable bit rate and constant bit rate.
7) sample rate / bit depth : these are the most basic specifications of all digital audio.
8) dynamic range: in layman’s terms, this is the rage from the softest to the loudest sound a system can produce.
9)dct/dct: short for discrete cosine transform , dct is a technique for representative.
10)id3: the tag embedded within an mp3 file that includes fields for artists.
November 12, 2009 at 10:55 am
Luis Regalado
1. Any time digital audio is mentioned.
2. The ratio between the size of the original uncompressed audio clip and its compressed version.
3. Lossy compression removes some information in order to make the file easier to compress, Lossless compression is a way of compressing music into a file that when played back is the same as the original.
4. Its how many bits it uses up in a given interval of time.
5. Variable Bit Rate music file uses a lower bit rate.
6. Constant Bit rate use the exact same amount of data from one moment to the next
7. Sample rate refers to how many times per second the original waveform is translated into digital form, Bit depth is how many bits are used to describe those samples.
8. The range from the softest to the loudest sound a system can produce.
9. DCT is a technique for representing waveform data.
10. The tag embedded within an MP3 file that includes fields for artists, album, title, track number, year, and a short comment.
11. MP3, MP3 Pro, WAV, AAC, WMA
November 12, 2009 at 10:56 am
Enrique y Sylvia
1.Codec: Any time digital audio is mentioned, this word gets thrown around. It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again
2.this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy/Lossless
Digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossy compression is by far the most popular format, because it allows for much smaller file sizes.
4. Bit Rate
The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5. A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately
6Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7Sample rate refers to how many times per second the original waveform is translated into digital form. CD audio, for instance, is sampled at 44.1KHz. That means that the left and right channels are each sampled 44,100 times per second.Bit Depthis how many bits are used to describe each of those samples. The more bits used to encode the file, the more accurate the sample. CD audio is sampled at 16 bits, so there is a 16-bit number to describe the amplitude of the sound wave for each of the 44,100 samples every second.
8Dynamic Rangeis the range from the softest to the loudest sound a system can reproduce.
9DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10iDCT is Inverse Discrete Cosine Transform, which is basically just a means of taking the weighted sum of cosine data and turning it back into a waveform.
11MP3MP3 Pro,WAV, and AAC
November 12, 2009 at 10:58 am
Miguel Rodriguez
1. is a device or software that enables video compression or decompression for digital video.
2. is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. lossy compression is that which actually removes some information in order to make the file easier to compress.
losses compression is what it sounds like, – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4. The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7.Sample rate refers to how many times per second the original waveform is translated into digital form.is how many bits are used to describe each of those samples.
8. is the range from the softest to the loudest sound a system can reproduce.
9.DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.D3: The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11. MP3, MP3 Pro, WAV, AAC,Windows Media Audio 9……
November 12, 2009 at 10:58 am
ivan ruiz
1)A codec is a device or computer program capable of encoding and/or decoding a digital data stream or signal.
2)The compression ratio of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber; from its largest capacity to its smallest capacity.
3)A lossy compression method is one where compressing data and then decompressing it retrieves data that is different from the original, but is close enough to be useful in some way. Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data.
4)In telecommunications and computing, bit rate is the number of bits that are conveyed or processed per unit of time.
5) A variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6) constant bit rate audio files are the most common-they use up the exact same amount of data from one moment to the next.
7) Sample rate refers to how man times per second the original waveform is translated into digital form.
8) in layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9) DCT is a technique fro representing waveform data, such as audio waves, as a weighted sum of cosines.
10) the tag embedded within an MP3 file that includes fields for artists, album, title, track number, year, and a short comment.
11)
November 12, 2009 at 10:58 am
Elias Mendoza
1.An algorithm used to compress data and then decompress it again,(shorting of compressor/decompressor
2.The ratio between the size of the original uncompressed audio clip and its compress version.
3.Lossy compression: is the what is actually removes some info. in order to make the file easier to compress.
Lossless Compression: a way of compressing music into a file that is absolutely identical to the original.
4. Bit Rate is defined as how many bits it uses up in a given interval of time.
5.A data transmission that can be represented by an irregular grouping of bits
6.The cooled remnant of the hot big bang that fills the entire universe
7.Its how many times per second the original waveform is translated into digital form.
8.Its the range from the softest to the loudest sound a system can reproduce
9.It is an important foundation of most lossy compression formats
10.The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.MP3, MP3 Pro, WAV, AAC,WMA
November 12, 2009 at 11:00 am
Estevan Langarica
1. It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2 Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version
3Digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.These common acronyms stand for Variable Bit Rate and Constant Bit Rate, respectively. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next
6.VBR audio files are often made with a certain quality in mind, rather than a certain bit rate, but it’s almost always true that, all things being equal, a VBR sound file will sound better than a CBR file of the same size
7.These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form.
8. In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce
9. Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.
November 12, 2009 at 11:00 am
Omar Ruiz
1. It is an algorithm used to compress data and then decompress it again.
2. the ratio between the size of the original uncompressed audio clip and than its
compressed version
3.lossy in when info is taken to make a file more easier to compress,lossless is a file that when played back sounds like the original file
4 it is the rite in which how many bits it uses up in a given interval of time.
5.Variable Bit Rate
6.Constant Bit Rate
7.Sample rate is how many times per second the waveform is translated into digital form,the depth is how many is used to describe the samples
8. the range from the softest to the loudest sound a system can reproduce
9. (Discrete Cosine transform) representing waveform
10. a tag embedded inside an mp3
11. mp3,mp3 pro ,wav, aac, wma ,wma9,and others wma stands for Windows Media Audio
November 12, 2009 at 11:01 am
jonathan valenzuela
1. codec its an algorithm used to compress data and then decompress it again.
2. simply put this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. lossy compression is that which actually removes some information in order to make the file easier to compress. lossless compression is just what it sounds like.
4. the bit rate of a digital file is defined as how many bits it used up in a given internal of time.
5. vbr is variable bit rate is a bit smarter.
6. cbr is constant bit rate audio files are the most common they use up the exact same amount of data from one moment to the next.
7. its how many times per second the original waveform is transladed into digital form.
8. its the range from the softest to the loudest sound a system can produce.
9. dct is a short for discrete cosine transform is a technique for representing waveform.
10. the tag embedde within an mp3 file that includes files for artists.
11.contrary to what many people believe this is not mpeg3 audio its actually mpeg, layer 3.
November 12, 2009 at 11:01 am
Jose Zacarias
1.Its a shortening of compressor/decompressor an algorithm used to compress data and then decompress it again.
2.Compression ratio is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.lossy is the most popular format, because it allows for much smaller file size.
lossless is just a way of compressing music into a file that, when played back, is absolutely identical to the original.
4.biy rate is defined as how many bits it uses up in a given internal of time.
5.VBR audio files are often made with a certain quality in mind, rather than a certain bit rate.
6.CBR describes the audio in each second of the song of what sounds are playing that second or complexity.
7.
November 12, 2009 at 11:32 am
Vanessa Franco
1. any time digital audio is mentoined this word gets thrown around its a mix of compressor and decompressor
2. simply put together this is the ratio between the size of the origional uncompressed audio clip and its compressed version
3. lossy compression is that which actually removes some information in order to make it easier
4. defines how many bits it used up in given interval time
5. music file that will use a little bit of area
6. file of the same size
7. most basic specifics of all digital audio files
8. this range is the range from the softes to the loudest sound in asystem
9. is a technique for representing waveform data
10. the tag ennabaled with in an Mp3
11. 1. mp3
2. mp3 pro
3. wav
4. aac
5.
November 12, 2009 at 11:36 am
Alma Cabrera
1. any time digital audio is mentioned, this word gets thrown around. It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2.Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.Digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time. (An audio file is almost always measured in “kilobits per second.”)
5.A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6.Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7.Sample rate refers to how many times per second the original waveform is translated into digital form.That’s where Bit Depth comes in. This is how many bits are used to describe each of those samples
8.In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9.Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.There is a slightly improved “v2” version of the ID3 tag that allows for longer comments and adds fields for composer, original artist, and a URL.
11.MP3,MP3 Pro,WAV,AAC,WMA
November 12, 2009 at 11:39 am
DANYRA PADILLA
1.CODEC IS AN ALGORITHM USED TO COMPRESS DATA AND THEN DECOMPRESS IT AGAIN.
2.COMPRESSION RATION IS THE RATIO BETWEEN THE SIZE OF THE ORIGINAL UNCOMPRESS AUDIO CLIP.
3.LOSSY/ LOSSLESS IS FORMATS THAT ARE DIVIDED INTO TWO TYPES; LOSSY COMPRESSION AND LOSSLESS COMPRESION.
4.BIT RATE IS THE DIGITAL FILE DEFINED AS MANY BITS IT USES UP A GIVEN INTERVAL OF TIME.
5.VBR MEANS VARIABLE BIT RATE.
6.CBR MEANS CONSTANT BIT RATE.
7.SAMPLE RATE/BIT DEPTH IS THE MOST BASIC SPECIFICATION OF ALL DIGITAL AUDIO FILES.
8.DYNAMIC RANGE IS THE LOUDEST SOUND A SYSTEM PRODUCE.
9.DCT IS TAKING THE WEIGHTED SUM OF COSINE DATA AND TURNING IT BACK INTO A WAVEFORM.
10.DR3 AN MP3 FILE TAHT INCLUDES FIELDS FOR ARTIST, ALBUM, TITLE, TRACK NUMBER, YEAR, AND A SHORT COMMENT.
11.*WAV FILES ARE USUALLY UNCOMPRESSED BUTA COMPRESSED STANDARD.
*MP3 ARE FREE BUT THEY REQUIRED A LICENSE.
*WINDOWS MEDIA AUDIO 9 CLAIMS 20% IMPROVEMENT IN QUALITY/BIT RATE.
*ATRAC ARGUABLY NOT QIITE AS GOOD AS A WELL ENCODED MP3 FILE.
*OGG VORBIS SIMILAR TO MP3 OR AAC COMPRESSION FORMATS.
November 12, 2009 at 11:42 am
Francine Garza
Codec-It’s a shortening of compressor/decompressor- an algorithm used to compress data and then decompress it again.
compression ration- This is the ratio between the size of the original uncompressed audio clip and it’s compressed version.
Lossy/lossless- Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossless compression is just what it sounds like-a way of compressing music into a file that,when played back,is absolutely identical to the original.
Bit rate- is defined as how many bits uses up in a given interval of time.
VBR- short for Variable bit rate, a VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
CBR- short for Constant Bit Rate, CBR audio files are the most common- they use up the exact same amount of data from one moment to the next.
Sampler rate/ Bit Depth- These are the most basic specifications of all digital audio files, compressed or not.
Dynamic range-This is the range from the softest to the loudest sound a system can reproduce.
DCT- Short for Discrete Cosine Transform, this is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
ID3- specifically refers to the MP3 files, there are similar tags embedded in most other digital media formats, many of which are more feature rich.
Five major audio formats are MP3, MP3 Pro, WAV, AAc, and WMA.
November 12, 2009 at 11:44 am
Barboza Denise
1) What is a Codec?it is a short name for coder-decoder, the software that takes a raw file and turns it into a compressed file.
2) What is compression ration?the reduction in size of data by converting it to a format that requires fewer bits
3) What is Lossy/Lossless?a way of compressing music into a file that,when played back,is absolutely identical to the original
4) What is Bit Rate?it is defined as how many bits it uses up in a given interval of time
5) What is VBR?it is a bit smarter a VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately.
6) What is CBR?they are not the most common–they use up the exact same amount of data from one moment to the next.
7) What is Sample Rate/Bit Depth?this are the most basic specifications of all digital audio files, compressed or not
8)What is Dynamic Range? in layman’s terms, this is the range from the softest to the loudest sound a system can reproduce
9) What is DCT?is a technique for representing waveform data, such as audio waves, as weighted sum of cosines
10) What is ID3?the tag embedded within an MP3 file that includes fields for artist, album, tittle, track number, year, and a short comment
11) Name 5 major Audio Formats and define each one.
1. MP3
2.MP3 PRO
3.WAV
4.AAC
5.WMA
November 12, 2009 at 11:46 am
Nicolas Rodriguez P.2
1. It’s a shortening of compressor/decompressor.
2. The ratio between an uncompressed audio clip and an compressed audio clip.
3. Lossy is where some data from the audio is removed to compress easier, Lossless is the opposite, no data is lost and has the same quality as the original.
4. The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5. Variable Bit Rate
6. Constant Bit Rate
7. Sample rate refers to how many times per second the original waveform is translated into digital form. Bit Depth is how many bits are used to describe each of those samples.
8. from the softest to the loudest sound a system can reduce.
9. Discrete Cosine Transform
10. the tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment
11.MP3-MPEG-3, WAV-Uncompressed file, AAC-Advanced Audio Coding, WMA-Windows Media Audio, MP3 Pro-MPEG-3 Pro
November 12, 2009 at 11:52 am
Maricela Lopez :)
1. It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2. This is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.Lossy compression is that which actually removes some information in order to make the file easier to compress.
4.defined as how many bits it uses up in a given interval of time.
5.A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6.Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7. Sample rate refers to how many times per second the original waveform is translated into digital form Bit Depth this is how many bits are used to describe each of those samples.
8.this is the range from the softest to the loudest sound a system can reproduce.
9.is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10. the tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11. WAV: is the de-facto standard for basic Windows sounds.
AAC: format can support up to 48 full frequency sound channels, so 5.1 or 7.1 sound is entirely possible. It also supports sample rates up to 96KHz, twice the maximum afforded by MP3.
Windows Media Audio 9 Lossless: This is a VBR-only codec that produces absolutely perfect, mathematically lossless copies of an original audio file, including 24-bit/96KHz and 5.1 audio.
Windows Media Audio 9 Voice: his codec is optimized for extremely low bit rate files,
Windows Media Audio 9 Professional: One of its cool features is that the decoder will automatically adapt the audio material to whatever hardware you have.
November 12, 2009 at 12:09 pm
Vanessa Gonzalez!
1.Codec-It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again. Some codecs are implemented in software, some in hardware, and some are limited in their functionality.
2.Compression Ratio-This is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy/Lossless-Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossy compression is by far the most popular format, because it allows for much smaller file sizes; Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4.Bit Ratehe bit rate of a digital file is defined as how many bits it uses up in a given interval of time. An audio file is almost always measured in “kilobits per second. Typically, the higher the bit rate at which music is encoded, the better the sound is.
5.VBR- Variable Bit Rate;A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately. VBR audio files are often made with a certain quality in mind, rather than a certain bit rate.(smarter)
6.CBR- Constant Bit Rate; CBR audio files are the most common;they use up the exact same amount of data from one moment to the next.
7.Sample Rate/Bit Depth- Sample rate refers to how many times per second the original waveform is translated into digital form; This is how many bits are used to describe each of those samples. The more bits used to encode the file, the more accurate the sample.
8.Dynamic Range- This is the range from the softest to the loudest sound a system can reproduce.
9.DCT- Discrete Cosine Transform; technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.ID3- The tag embedded within an mp3 file that includes fields for artist, album, title, track number, year, and a short comment. There is a slightly improved “v2” version of the ID3 tag that allows for longer comments and adds fields for composer, original artist, and a url.
11.Audio Formats::
-AAC; Short for Advanced Audio Coding,supports sample rates up to 96KHz, twice the maximum afforded by MP3.essentially the same as MPEG-2 AAC.
-WAV; Usually uncompressed, achieves 4:1 compression ratio through lossy ADPCM scheme.
-WMA9 Pro; Supports up to 24-bit/96KHz audio and sound formats up to 5.1 and even 7.1. One of its cool features is that the decoder will automatically adapt the audio material to whatever hardware you have.
-Ogg Vorbis; Similar to MP3 & AAC compression formats. Completely free, unpatented, and open-source. There are actually two terms here: Ogg is the file container that should one day contain both audio and video, while Vorbis is the actual audio compression designed to be contained within it.
-ATRAC; Short for Adaptive Transform Acoustic Coding, widely used in its MiniDisc and solid-state Walkman digital music players. The original ATRAC format is arguably not quite as good as a well-encoded MP3 file. It works by splitting the sound signal into separate frequency bands and compressing them separately
November 12, 2009 at 12:27 pm
David Quintanilla
1)Codec is a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again
2)compression ratio is the ratio between the size of the original uncompressed audio clip and its compressed version
3)Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossy compression is by far the most popular format, because it allows for much smaller file sizes.—Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original
4)bit rate is The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately
6)Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next
7) Sample rate refers to how many times per second the original waveform is translated into digital form. Bit Depthis how many bits are used to describe each of those samples
8)Dynamic Range is the range from the softest to the loudest sound a system can reproduce
9)DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines
10)ID3:The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment
11)MP3:It’s actually MPEG, Layer 3.
WAV:usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ADPCM (Adaptive Differential Pulse Code Modulation) scheme that drops each sample down from 16 bits to 4 bits
AAC:Short for Advanced Audio Coding
WMA:windows media audio
RealAudio:At bit rates less than 128kb/s, RealAudio 10 uses its own proprietary compression technology. At higher bit rates, it uses MPEG-4 AAC
November 12, 2009 at 12:30 pm
Larry Avila
1. Code: Any time digital audio is mentioned, this word gets thrown around.
2. Compression Ratio: Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. Lossy/Lossless: Digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress.
4. Bit Rate: The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5. VBR: These common acronyms stand for variable bit rate and constant bit rate, respectively.
6. CBR: These common acronyms stand for variable bit rate and constant bit rate, respectively.
7. Sample Rate/Bit Depth: These are the most basic specifications of all digital audio files, compressed or not.
8. Dynamic Range: In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9.DCT/IDCT: Short for discrete cosine transform, DTC is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10. MP3: The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11. MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, layer 3.
MP3 PRO: Thomson acquired this new format in 2001 from its swedish partner company coding technologies, who developed it when researching a hearing device for the deaf.
WAV: The WAV standard was developed by Microsoft and IBM nearly tow decades ago, and is the de-facto standard for basic Windows sounds.
AAC: short for Advance Audio Coding, AAC has been part of the MPEG2 specever since the motion picture experts declared it standards in April of 1997.
WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
November 12, 2009 at 1:37 pm
Saul Gudino
1.Codec: Any time digital audio is mentioned, this word gets thrown around. It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2.Compression Ratio: Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. Lossy compression: is that which actually removes some information in order to make the file easier to compress. Lossless compression: is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately
6.Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7.These are the most basic specifications of all digital audio files, compressed or not.
8.Dynamic Range: In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9.Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.ID3: The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.
A..MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, Layer 3.
B..MP3 Pro: Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf.
C..WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds.
D..AAC: Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.
E..WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
November 12, 2009 at 1:54 pm
ARMANDO MAGALLON {MANDO}
1) What is a Codec?an algorithm used to compress data and then decompress it again.
2) What is compression ration?the ratio between the size of the original uncompressed audio clip and its compressed version.
3) What is Lossy/Lossless?Lossy compression is that which actually removes some information in order to make the file easier to compress and Lossless compression is a way of compressing music into a file that, when played back, is absolutely identical to the original.
4) What is Bit Rate?bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) What is VBR?VBR or Variable Bit Rate will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately
6) What is CBR?CBR or Constant Bit Rate use up the exact same amount of data from one moment to the next.
7) What is Sample Rate/Bit Depth?Rate/Bit Depth is how many times per second the original waveform is translated into digital form.
8]What is Dynamic Range?Dynamic Range is the range from the softest to the loudest sound a system can reproduce.
9) What is DCT?Discrete Cosine Transform or DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) What is ID3? ID3 is the tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) Name 5 major Audio Formats and define each one.
1]MP3
2]MP3 Pro
3]WAV
4]AAC
5]WMA
6]Real-Audio
WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds. WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ADPCM (Adaptive Differential Pulse Code Modulation) scheme that drops each sample down from 16 bits to 4 bits.
November 12, 2009 at 1:55 pm
ARMANDO MAGALLON {MANDO}
1) What is a Codec?an algorithm used to compress data and then decompress it again.
2) What is compression ration?the ratio between the size of the original uncompressed audio clip and its compressed version.
3) What is Lossy/Lossless?Lossy compression is that which actually removes some information in order to make the file easier to compress and Lossless compression is a way of compressing music into a file that, when played back, is absolutely identical to the original.
4) What is Bit Rate?bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) What is VBR?VBR or Variable Bit Rate will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately
6) What is CBR?CBR or Constant Bit Rate use up the exact same amount of data from one moment to the next.
7) What is Sample Rate/Bit Depth?Rate/Bit Depth is how many times per second the original waveform is translated into digital form.
8]What is Dynamic Range?Dynamic Range is the range from the softest to the loudest sound a system can reproduce.
9) What is DCT?Discrete Cosine Transform or DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) What is ID3? ID3 is the tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) Name 5 major Audio Formats and define each one.
1]MP3
2]MP3 Pro
3]WAV
4]AAC
5]WMA
6]Real-Audio
WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds. WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ADPCM (Adaptive Differential Pulse Code Modulation) scheme that drops each sample down from 16 bits to 4 bits.
November 12, 2009 at 1:55 pm
vicky Samano & josie rivera :]&Victor Solis
1) What is a Codec
A codec is a device or computer program capable of encoding and/or decoding a digital data stream or signal.
2)What is compression ration?
The compression ratio of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber; from its largest capacity to its smallest capacity.
3) What is Lossy/Lossless?
A lossy compression method is one where compressing data and then decompressing it retrieves data that is different from the original, but is close enough to be useful in some way.
4) What is Bit Rate?
the bit rate is quantified using the bits per second (bit/s or bps) unit, often in conjunction with an SI prefix such as kilo- (kbit/s or kbps), mega- (Mbit/s or Mbps), giga- (Gbit/s or Gbps) or tera- (Tbit/s or Tbps).
5) What is VBR?
Variable bitrate (VBR) is a term used in telecommunications and computing that relates to the bitrate used in sound or video encoding.
The Criminal Records Bureau (CRB), an Executive Agency of the Home Office, provides wider access to criminal record information through its Checking service.
7) What is Sample Rate/Bit Depth?
In digital audio, bit depth describes the number of bits of information recorded for each sample. Bit depth directly corresponds to the resolution of each sample in a set of digital audio data. Common examples of bit depth include CD quality audio, which is recorded at 16 bits, and DVD-Audio, which can support up to 24-bit audio.
What is Dynamic Range?
Dynamic range is a term used frequently in numerous fields to describe the ratio between the smallest and largest possible values of a changeable quantity, such as in sound and light. It is measured as a ratio, or as a base-10 (decibel) or base-2 (doublings, bits or stops) logarithmic value.
9) What is DCT?
A discrete cosine transform (DCT) expresses a sequence of finitely many data points in terms of a sum of cosine functions oscillating at different frequencies.
10)What is ID3?
ID3 is a metadata container most often used in conjunction with the MP3 audio file format. It allows information such as the title, artist, album, track number, and other information about the file to be stored in the file itself.
11)Name 5 major Audio Formats and define each one.
A digital audio player, sometimes referred to as an MP3 player, is a consumer electronic device that has the primary function of storing, organizing and playing audio files. Some DAPs are also referred to as portable media players as they have image-viewing and/or video-playing support.
November 12, 2009 at 1:57 pm
sergio perez per-3
1> is a technical term for the compression, decompression of large downloadble files.
2s the ratio between the size of the original uncompressed audio clip and its compressed version.
3>igital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress.
4>he bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5>> music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately. VBR audio files are often made with a certain quality in mind, rather than a certain bit rate, but it’s almost always true that, all things being equal, a VBR sound file will sound better than a CBR file of the same size.
6> 28kilobits to describe the audio in each second of the song, regardless of what sounds are playing that second or the complexity of the audio stream at the time. A Variable Bit Rate is a bit smarter.
7>Sample rate refers to how many times per second the original waveform is translated into digital form.
8> s the range from the softest to the loudest sound a system can reproduce
9>s a technique for representing waveform data, such as audio waves, as a weighted sum of cosines. iDCT is Inverse Discrete Cosine Transform, which is basically just a means of taking the weighted sum of cosine data and turning it back into a waveform.
10>ID3 specifically refers to MP3 files, there are similar tags embedded in most other digital media formats, many of which are more feature rich (some include room for lyrics, ratings, etc.). It’s not uncommon to hear people refer to them all as simply “ID3 Tags
11>
1>mp3- Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, Layer 3. It was developed in the late 80s by the Fraunhofer Institute in conjunction with the University of Erlangen. Today, the patent rights belong to Thomson and Fraunhofer IIS, and are granted by Thomson.
2>mp3 proThomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf. It claims to offer equal sound quality at half the bit rate of regular MP3.
3> wav-The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds.
4>Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997. It was developed by the Fraunhofer Institute in conjunction with companies like AT&T, Sony, and Dolby.
5> real audio>The RealAudio format from Real Networks started many years ago as a delivery mechanism for streaming audio over the net, primarily with dial-up internet connections. Times have changed, of course, and the latest technology is much more robust. At bit rates less than 128kb/s, RealAudio 10 uses its own proprietary compression technology
November 12, 2009 at 1:58 pm
rafael lopez
1) an algorithm used to compress data and then decompress it again.
2) the ratio between the size of the original uncompressed audio clip and its compressed version.
3) Lossy: a digital sound format that removes info in order to make the file easier to compress. Lossless: a way of compressing music that is identical to the original.
4) how many bits it uses up in a given interval of time.
5) music that uses a lower bit rate in parts of a song that are simpler to compress and have a better quality.
6) they use up the exact same amount of data from one moment to the next.
7) The most basic specifications of all digital audio files. Sample rate: how many times per second the original waveform is translated into digital form. Bit depth: how many bits are used to describe each of those samples.
8) This is the range from the softest to the loudest sound a system can reproduce.
9) a technique for representing waveform data
10) The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) MP3: a audio format which contains no DRM. WAV:he de-facto standard for basic Windows sounds and is usually uncompressed. AAC: a audio format that can support up to 48 full frequency sound channels and It also supports sample rates up to 96KHz. WMA:Windows Media Audio format. ATRAC: format that works by splitting the sound signal into separate frequency bands and compressing them separately.
November 12, 2009 at 2:07 pm
Angelica Sanchez
1. Codec is a device or computer program capable of encoding and/or decoding a digital data stream or signal.
2. The compression ratio of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber; from its largest capacity to its smallest capacity.
3. A lossy compression method is one where compressing data and then decompressing it retrieves data that is different from the original, but is close enough to be useful in some way. A Lossless compression methods may be categorized according to the type of data they are designed to compress.
4. Bit Rate is the number of bits that are conveyed or processed per unit of time.
5. VBR stands for Variable Bit Rate. It’s a method of encoding audio to MP3 that allows for different sections of the file to be encoded at different bitrates, depending upon the demands of the source audio (some type of sounds require a higher bitrate, others encode well using a lower bitrate).
6. CBR stands for Constant Bit Rate. It’s a method of audio files are the most common–they use up the exact same amount of data from one moment to the next.
7. Sample rate refers to how many times per second the original waveform is translated into digital form, and the Bit Depth is how many bits are used to describe each of those samples. The more bits used to encode the file, the more accurate the sample.
8. Is the range from the softest to the loudest sound a system can reproduce.
9. DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10. Is the tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.
1) Major Audio Formats
MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, Layer 3.
2)MP3 Pro: Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf.
3) WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds.
4) AAC: Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.
5) Windows Media Audio 9: Microsoft claims a 20% improvement in quality/bit rate over WMA8, but the big addition here is support for VBR encoding.
November 12, 2009 at 2:08 pm
Andres Trevino aka Iceman
1.Codec: an algorithm used to compress data and then decompress it again. Some codecs are implemented in software, some in hardware, and some are limited in their functionality.
2.Compression Ration: Ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy/Lossless: Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4.Bit Rate: The bit rate of a digital file is defined as how many bits it uses up in a given interval of time. (An audio file is almost always measured in “kilobits per second.”)
5.VBR: Music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6.CBR: Music file, it will use 128kilobits to describe the audio in each second of the song, regardless of what sounds are playing that second or the complexity of the audio stream at the time.
7.Sample Rate/Bit Depth: These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form. CD audio, for instance, is sampled at 44.1KHz.
8.Dynamic Range: In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce. Humans (especially children) can hear nearly 0 decibels and our pain threshold is up around 120 decibels, so we can say that humans have a dynamic range of around 120dB.
9.DCT: A technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.ID3: Allows for longer comments and adds fields for composer, original artist, and a URL.
11.MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, Layer 3. It was developed in the late 80s by the Fraunhofer Institute in conjunction with the University of Erlangen.
MP3 Pro: It claims to offer equal sound quality at half the bit rate of regular MP3. While this is certainly subjective, it does sound a lot better at very low bit rates (64kb/s and below).
WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds. WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ADPCM (Adaptive Differential Pulse Code Modulation) scheme that drops each sample down from 16 bits to 4 bits.
AAC: Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.
WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features. Today’s WMA9 technology includes four separate codecs.
November 12, 2009 at 2:11 pm
javier linares block 3
1) it’s a shortening of compressor or decompressor. an algorithm used to compress data and then decompress it again
2) this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3)Lossy compression is that which actually removes some information in order to make the file easier to compress. a way of compressing music into a file that, when played back, is absolutely identical to the original.
4) The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately.
6) A CBR audio files are the most common. they use up the exact same amount of data from one moment to the next.
7)These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form.
8)The range of acceptable or possible volumes of sound occurring in the course of a piece of music or a performance.
9) Is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) 1 MP3 Layer 3 is one of three coding schemes (layer 1, layer 2 and layer 3) for the compression of audio signals. 2 WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy 3 AAC the AAC format can support up to 48 full frequency sound channels, so 5.1 or 7.1 sound is entirely possible. It also supports sample rates up to 96KHz, twice the maximum afforded by MP3. 4 Real Audio format from Real Networks started many years ago as a delivery mechanism for streaming audio over the net, primarily with dial-up internet connections. 5 ATRAC The original ATRAC format is arguably not quite as good as a well-encoded MP3 file, though it has gone through several revisions.
November 12, 2009 at 2:13 pm
malle10
1. codec is a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2. compression ration is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. lossy/lossless is a digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossy compression is by far the most popular format, because it allows for much smaller file sizes. Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original. Not just “sounds the same,” but that is statistically identical.
4.Bit rate is the bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.a VBR audio files are often made with a certain quality in mind, rather than a certain bit rate, but it’s almost always true that, all things being equal, a VBR sound file will sound better than a CBR file of the same size.
6. A Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7. A Sample Rate/ Bit Depth are These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form.
8. A Dynamic Range is the range from the softest to the loudest sound a system can reproduce.
9. DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10. ID3 is the tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11. MP3- was developed in the late 80s.
WAV- was developed by Microsoft and IBM nearly two decades ago.
AAC- was developed by the Fraunhofer Institute in conjunction with companies like AT&T, Sony, and Dolby.
WAM- Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
MP3 Pro- Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf.
November 12, 2009 at 2:13 pm
elsa olivares block 3
1) it’s a shortening of compressor or decompressor. an algorithm used to compress data and then decompress it again
2) this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3)Lossy compression is that which actually removes some information in order to make the file easier to compress. a way of compressing music into a file that, when played back, is absolutely identical to the original.
4) The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately.
6) A CBR audio files are the most common. they use up the exact same amount of data from one moment to the next.
7)These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form.
8)The range of acceptable or possible volumes of sound occurring in the course of a piece of music or a performance.
9) Is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) 1 MP3 Layer 3 is one of three coding schemes (layer 1, layer 2 and layer 3) for the compression of audio signals. 2 WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy 3 AAC the AAC format can support up to 48 full frequency sound channels, so 5.1 or 7.1 sound is entirely possible. It also supports sample rates up to 96KHz, twice the maximum afforded by MP3. 4 Real Audio format from Real Networks started many years ago as a delivery mechanism for streaming audio over the net, primarily with dial-up internet connections. 5 ATRAC The original ATRAC format is arguably not quite as good as a well-encoded MP3 file, though it has gone through several revisions.
November 12, 2009 at 2:15 pm
Elizabeth Franco
1.CODEC:compressor/decompressor An algorithm used to compress data and then decompress it again.
2.COMPRESSION RATIO: This is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.LOSSY/LOSSLESS: Lossy compression is that which actually removes some information in order to make the file easier to compress.And Lossless compression is a way of compressing music into a file that when played back its absolutely identical to the original.
4.BIT RATE:Is defined as how many bits it uses up in a given interval of time.
5.VBR: Music file will use a lower bit rate in areas of the song.
6.CBR:Audio files are the most common they used up the exact same amount of data from one moment to the next.
7.SAMPLE RATE/BIT DEPTH: Sample rate is how many times per second the original waveform is translated into digital form.
8.DYNAMIC RANGE: This is the range from the softest to the loudest sound a system can produce.
9.DCT:Is a technique for representing wave form data such as audio waves as a weighted sum of cosines.
10.ID3: The tag embedded within an MP3 file that includes fields for artist,album,title,track #,year,and a short comment.
November 12, 2009 at 2:15 pm
Elmer Cazares
1. codec is a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2. compression ration is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. lossy/lossless is a digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossy compression is by far the most popular format, because it allows for much smaller file sizes. Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original. Not just “sounds the same,” but that is statistically identical.
4.Bit rate is the bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.a VBR audio files are often made with a certain quality in mind, rather than a certain bit rate, but it’s almost always true that, all things being equal, a VBR sound file will sound better than a CBR file of the same size.
6. A Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7. A Sample Rate/ Bit Depth are These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form.
8. A Dynamic Range is the range from the softest to the loudest sound a system can reproduce.
9. DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10. ID3 is the tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11. MP3- was developed in the late 80s.
WAV- was developed by Microsoft and IBM nearly two decades ago.
AAC- was developed by the Fraunhofer Institute in conjunction with companies like AT&T, Sony, and Dolby.
WAM- Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
MP3 Pro- Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf.
November 12, 2009 at 2:15 pm
Eduardo Villanueva
1.Codec: an algorithm used to compress data and then decompress it again. Some codecs are implemented in software, some in hardware, and some are limited in their functionality.
2.Compression Ration: Ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy/Lossless: Lossy compression is that which removes some info in order to make the file easier to compress. Lossless is just what it sounds like – a way of compressing music into a file that, when played back, is identical to the original.
4.Bit Rate: Bit rate of a digital file is defined as how many bits it uses up in a given interval of time. An audio file is almost always measured in, kilobits per second.
5.VBR: Music file will use a lower rate in areas of the songs that are simpler to compress, and then higher bit rates in parts that require more bits to describe accurately.
6.CBR: Music file, it will use 128kilo to describe the audio in each second of the song, regardless of what sounds are playing that second or the complexity of the audio stream at the time.
7.Sample Rate/Bit Depth: These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form. CD audio, for instance, is sampled at 44.1KHz.
8.Dynamic Range: In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce. Humans (especially children) can hear nearly 0 decibels and our pain threshold is up around 120 decibels, so we can say that humans have a dynamic range of around 120dB.
9.DCT: A technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.ID3: Allows for longer comments and adds fields for composer, original artist, and a URL.
11.MP3: It’s actually MPEG, Layer 3. It was developed in the late 80s by the Fraunhofer Institute in conjunction with the University of Erlangen.
MP3 Pro: It claims to offer equal sound quality at half the bit rate of regular MP3. While this is certainly subjective, it does sound a lot better at very low bit rates.
WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds. WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ADPCM.
AAC: AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.
WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
November 12, 2009 at 2:16 pm
Javier Linares block 3
1) it’s a shortening of compressor or decompressor. an algorithm used to compress data and then decompress it again
2) this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3)Lossy compression is that which actually removes some information in order to make the file easier to compress. a way of compressing music into a file that, when played back, is absolutely identical to the original.
4) The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately.
6) A CBR audio files are the most common. they use up the exact same amount of data from one moment to the next.
7)These are the most basic specifications of all digital audio files, compressed or not. Sample rate refers to how many times per second the original waveform is translated into digital form.
8)The range of acceptable or possible volumes of sound occurring in the course of a piece of music or a performance.
9) Is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) 1 MP3 Layer 3 is one of three coding schemes (layer 1, layer 2 and layer 3) for the compression of audio signals. 2 WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy 3 AAC the AAC format can support up to 48 full frequency sound channels, so 5.1 or 7.1 sound is entirely possible. It also supports sample rates up to 96KHz, twice the maximum afforded by MP3. 4 Real Audio format from Real Networks started many years ago as a delivery mechanism for streaming audio over the net, primarily with dial-up internet connections. 5 ATRAC The original ATRAC format is arguably not quite as good as a well-encoded MP3 file, though it has gone through several revisions.
November 12, 2009 at 2:28 pm
Fernanda Torres
1) What is a Codec?
It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again. Some codecs are implemented in software, some in hardware, and some are limited in their functionality.
2) What is compression ration?
Is the ratio between the size of the original uncompressed audio clip and its compressed version.
3) What is Lossy/Lossless?
Lossy compression is that which actually removes some information in order to make the file easier to compress. Lossy compression is by far the most popular format, because it allows for much smaller file sizes.
Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4) What is Bit Rate?
The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) What is VBR?
Acronym that stands for Variable Bit Rate. A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6) What is CBR?
Acronym that stands for Constant Bit Rate. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7) What is Sample Rate/Bit Depth?
Sample rate refers to how many times per second the original waveform is translated into digital form. Sample rate refers to how many times per second the original waveform is translated into digital form.
8) What is Dynamic Range?
This is the range from the softest to the loudest sound a system can reproduce.
9) What is DCT?
Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) What is ID3?
The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) Name 5 major Audio Formats and define each one.
MP3: MPEG, Layer 3
WAV: WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ADPCM scheme that drops each sample down from 16 bits to 4 bits.
AAC: Short for Advanced Audio Coding. AAC format can support up to 48 full frequency sound channels, so 5.1 or 7.1 sound is entirely possible. It also supports sample rates up to 96KHz, twice the maximum afforded by MP3.
RealAudio: At bit rates less than 128kb/s, RealAudio 10 uses its own proprietary compression technology.
November 12, 2009 at 2:34 pm
cristian ortiz o
1) When you come across two geeks talking about digital music, it can sound an awful lot like they’re speaking in another language (much like listening to a baseball fans) 2) Simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version. 3)Digital sound formats are divided into two types: Lossy compression is that which actually removes some information in order to make the file easier to compress. 4)The bit rate of a digital file is defined as how many bits it uses up in a given interval of time. (An audio file is almost always measured in “kilobits per second.” 5)Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next. 6)CBR stands for Constant BitRate. What this means is that the audio source you are encoding ( compressing ) is represented by a constant .7Jump to Bit rate: To fully define a sound file’s digital audio bit rates, the sampling rate, word size, number of channels, (e.g. mono, stereo, …
November 12, 2009 at 2:50 pm
yasmin&amelia period3
1. A codec is a device or computer program capable of encoding and/or decoding a digital data stream or signal.
2. compression ration is an internal combustion engine the ratio of the volume between the piston and cylinder head before and after a compression.
3.lossless and lossy compression are terms that describe whether or not in the compression of a file all original data can be recovered.
4. bit rate is the number of bits that pass a given point in a telecommunication network in a given amount
5. a data transmission that can be represented
6.comic background radiation
7. the ratio of the specificed maxium signal level
8. a varible codec audio file designed for dictation
9. dominant negative helix-loop-helix protein
10.wave,mp3,mp4,wma,ogg
11.a bit depth of 16 and a sample rate
November 12, 2009 at 3:16 pm
eduardo arredondo
1.t’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.Codecs are implemented in software, some in hardware, and some are limited in their functionality.
2.ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy compression is that which actually removes some information in order to make the file easier to compress.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7.These are the most basic specifications of all digital audio files, compressed or not.
8.layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9.Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.Windows Media Audio 9,Windows Media Audio 9 Professional,Windows Media Audio 9 Lossless,Windows Media Audio 9 Voice, and RealAudio.
November 12, 2009 at 3:18 pm
Norberto Ferreira
1.It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2. this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy compression is that which actually removes some information in order to make the file easier to compress.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time. (An audio file is almost always measured in “kilobits per second.”)
5.A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6.Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next. If you have a 128kb/s CBR music file, it will use 128kilobits to describe the audio in each second of the song, regardless of what sounds are playing that second or the complexity of the audio stream at the time.
7. Sample rate refers to how many times per second the original waveform is translated into digital form.
8.this is the range from the softest to the loudest sound a system can reproduce.
9.Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, Layer 3.AAC: Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds. Real-Audio, The RealAudio format from Real Networks started many years ago as a delivery mechanism for streaming audio over the net, primarily with dial-up internet connections.
November 12, 2009 at 3:24 pm
Jazmin Gonzalez
1) What is a Codec? Its a shortening of compressor/decompressor-an algorithm used to compress data and then decompress it again
2) What is compression ration?The ratio between the size of the original uncompressed audio clip and its compressed version.
3) What is Lossy/Lossless?Lossy compression is that which actually removes some information in order to make the file easier to compress.Lossless compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4) What is Bit Rate?The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) What is VBR? Variable Bit Rate A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6) What is CBR? Constant Bit Rate, respectively. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7) What is Sample Rate/Bit Depth?Sample rate refers to how many times per second the original waveform is translated into digital form. Bit Depth is how many bits are used to describe each of those samples.
8)What is Dynamic Range?The range from the softest to the loudest sound a system can reproduce.
9) What is DCT?Short for Digital Rights Management, it’s a blanket term for technologies designed to reduce or eliminate digital content piracy.
10) What is ID3?The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) Name 5 major Audio Formats and define each one.
MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, layer 3.
MP3 PRO: Thomson acquired this new format in 2001 from its swedish partner company coding technologies, who developed it when researching a hearing device for the deaf.
WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
WAV: The WAV standard was developed by Microsoft and IBM nearly tow decades ago, and is the de-facto standard for basic Windows sounds.
AAC: short for Advance Audio Coding, AAC has been part of the MPEG2 specever since the motion picture experts declared it standards in April of 1997.
November 12, 2009 at 3:28 pm
Yvette Aceves
1. Codec- Shortening of compressor/decompressor, used to compress data and then decompressed again. They are put in software, hardware, and some may be limited in their function.
2. Compression Ratio- The ratio between the size of the original uncompressed audio clip and its compressed version.
3. Lossy/Lossless- Digital sound is formatted into two types: Lossy Compression, which removes data to make the file easier to compress and Lossless Compression, is what it sounded like, a way of compressing music that when its played back it sounds exactly the same.
4. Bit Rate- its the bit rate of a file which is identified by how many bits it used in a given interval of time.
5. VBR- Variable Bit Rate, uses a lower bit rate in some areas of the song and higher in others.
6. CBR- Constant Bit Rate, most common files and use the exact same amount of information from one moment to the next.
7. Sample Rate/Bit Depth- The most basic specifications of digital audio files, whether they are compressed or not.
8. Dynamic Range- The range from the softest to the loudest sound that a system can reproduce.
9. DCT- Discrete Cosine Transform that is a technique to represent waveform data like audio waves.
10. ID3- The tag that comes within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11. *MP3- A MPEG audio layer 3. Like songs.
*WAV-They are uncompressed and is the de-facto standard for basic Windows sounds.
*ACC- Advanced Audio Coding, it can support up to 48 full frequency sound channels.
*MP3 Pro- It offers equal sound quality at half the bit rate of regular MP3.
*WMA- Windows Media Audio, has various versions, since it had been improved over the years and is used in online services, like Napster.
November 12, 2009 at 3:40 pm
Berenice Bautista
1) What is a Codec?Any time digital audio is mentioned this word gets thrown around and is a common in the digital media that’s what this word means.
2) What is compression ration?It’s this ratio between in the size of the original uncompressed version.
3) What is Lossy/Lossless?Would lossy digital sounds formats are divided in two types:lossy compression is that witch actually removes some info in order to make it easier.
4) What is Bit Rate?The bit rate of a digital file is defined as how many bits it used up in a given interval time.
5) What is CBR?Would is the bit radio audio and files are the common they use up the exact same amount of data from one moment to another.
6) What is VRB?an audio files are often made with a certain quality in mind, rather than a certain bit rate but its almost always true that all things be equal.
7) What is Sample Rate/Bit Depth?These are the most basic specifications of all digital audio files they compressed or not . Sample rate refers to how many times per second the original waveform is translated into digital form.
What is Dynamic Range?In humans can nearly o decibels so we can say that humans have a dynamic range of around 120dB
9) What is DCT?And DCT itself does not lost any data in process,but is an important foundation of most lossy compression formats including most audio.
10) What is ID3?he tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment. There is a slightly improved “v2” version of the ID3 tag that allows for longer comments and adds fields for composer, original artist, and a URL.
11) Name 5 major Audio Formats and define each one.
MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, layer 3. MP3 PRO: Thomson acquired this new format in 2001 from its swedish partner company coding technologies, who developed it when researching a hearing device for the deaf. WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features. WAV: The WAV standard was developed by Microsoft and IBM nearly tow decades ago, and is the de-facto standard for basic Windows sounds. AAC: short for Advance Audio Coding, AAC has been part of the MPEG2 specever since the motion picture experts declared it standards in April of 1997.
November 12, 2009 at 3:44 pm
karina ceja
1) What is a Codec?Any time digital audio is mentioned this word gets thrown around and is a common in the digital media that’s what this word means.
2) What is compression ration?It’s this ratio between in the size of the original uncompressed version.
3) What is Lossy/Lossless?Would lossy digital sounds formats are divided in two types:lossy compression is that witch actually removes some info in order to make it easier.
4) What is Bit Rate?The bit rate of a digital file is defined as how many bits it used up in a given interval time.
5) What is CBR?Would is the bit radio audio and files are the common they use up the exact same amount of data from one moment to another.
6) What is VRB?an audio files are often made with a certain quality in mind, rather than a certain bit rate but its almost always true that all things be equal.
7) What is Sample Rate/Bit Depth?These are the most basic specifications of all digital audio files they compressed or not . Sample rate refers to how many times per second the original waveform is translated into digital form.
What is Dynamic Range?In humans can nearly o decibels so we can say that humans have a dynamic range of around 120dB
9) What is DCT?And DCT itself does not lost any data in process,but is an important foundation of most lossy compression formats including most audio.
10) What is ID3?he tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment. There is a slightly improved “v2” version of the ID3 tag that allows for longer comments and adds fields for composer, original artist, and a URL.
11) Name 5 major Audio Formats and define each one.
MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, layer 3. MP3 PRO: Thomson acquired this new format in 2001 from its swedish partner company coding technologies, who developed it when researching a hearing device for the deaf. WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features. WAV: The WAV standard was developed by Microsoft and IBM nearly tow decades ago, and is the de-facto standard for basic Windows sounds. AAC: short for Advance Audio Coding, AAC has been part of the MPEG2 specever since the motion picture experts declared it standards in April of 1997.
November 12, 2009 at 3:46 pm
jose baeza
1) What is a Codec?Any time digital audio is mentioned this word gets thrown around and is a common in the digital media that’s what this word means.
2) What is compression ration?It’s this ratio between in the size of the original uncompressed version.
3) What is Lossy/Lossless?Would lossy digital sounds formats are divided in two types:lossy compression is that witch actually removes some info in order to make it easier.
4) What is Bit Rate?The bit rate of a digital file is defined as how many bits it used up in a given interval time.
5) What is CBR?Would is the bit radio audio and files are the common they use up the exact same amount of data from one moment to another.
6) What is VRB?an audio files are often made with a certain quality in mind, rather than a certain bit rate but its almost always true that all things be equal.
7) What is Sample Rate/Bit Depth?These are the most basic specifications of all digital audio files they compressed or not . Sample rate refers to how many times per second the original waveform is translated into digital form.
What is Dynamic Range?In humans can nearly o decibels so we can say that humans have a dynamic range of around 120dB
9) What is DCT?And DCT itself does not lost any data in process,but is an important foundation of most lossy compression formats including most audio.
10) What is ID3?he tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment. There is a slightly improved “v2” version of the ID3 tag that allows for longer comments and adds fields for composer, original artist, and a URL.
11) Name 5 major Audio Formats and define each one.
MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, layer 3. MP3 PRO: Thomson acquired this new format in 2001 from its swedish partner company coding technologies, who developed it when researching a hearing device for the deaf. WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features. WAV: The WAV standard was developed by Microsoft and IBM nearly tow decades ago, and is the de-facto standard for basic Windows sounds. AAC: short for Advance Audio Coding, AAC has been part of the MPEG2 specever since the motion picture experts declared it standards in April of 1997.
November 12, 2009 at 3:49 pm
rubi montez block3,4
1)any time digital audio is mentioned, this word gets thrown around.
2)simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3)digital sound formats are divided into two types: lossy compression is that which actually removes some information in order to make the file easier to compress.
4)the bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5)the common acronyms stand for variable bit rate.
6) constant bit rate
7)sample rate refers to how many times per sound the original waveform is translated into digital form.
8″)this is the range from the softest to the loudest sound a system can reproduce.
9) short for discrete cosine transform,dct is a technique for representing wave form data, such as audio waves, as weighted sum of cosines.
10)The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11)MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, Layer 3.MP3 Pro: Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf. WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds.AAC: Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
November 12, 2009 at 3:51 pm
Nancy C.
1. Code= An algorithm used to compress data and then decompress it again.
2. Compression Ratio= The ratio between the size of the original uncompressed audio clip and its compressed version.
3. Lossy= Removes some information in order to make the file easier to compress.
4. Bit Rate= How many bits it uses up in a given interval of time.
5. VBR= Music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6. CBR= RAR achieved comic book file.
7. Sample Rate= How many times per second the original waveform is translated into digital form.
8. Dynamic Range= In a system or device, the ratio of a specified maximum level of a parameter.
9.DCT= A technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10. ID3= The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11. MP3: MPEG, LAYER 3
MP3 Pro: reduces an MP3 file to half its size while retaining the same sound quality
WAV: music file.
AAC: compression and encoding system.
WMA: an audio data compression technology developed by Microsoft.
November 12, 2009 at 3:52 pm
Nicole =D
1. Codec- a microchip that compresses data to enable faster transportation or decompresses received data.
2. Bit Rate- the number of bits used in a given amount of time.
3. Sample Rate- the number of times per second the original waveform is translated into the digital form.
4. Lossy- removes information in order to make the file easier to compress/lossless- a way of compressing music into a file that, when played again, is totally like the original song.
5. Dynamic Range- the range form the softest to the loudest sound a system could make.
6. DCT- a technique for representing waveform data, such audio waves.
7. ID3- the tag that comes within an MP3 file that names the artist, album, title, track, number, year, and a short comment.
8. Compression Ratio- the ratio between the size of the original uncompressed audio clip and the compressed version.
9. VBR- the bitrate used in sound or video encoding is not held constant.
10. CBR- RAR acheived comic book file.
11. The 5 major AF are:
WAV: the de-facto standard for basic Windows sounds.
AAC: this format can support up to 48 full frequency sound channels.
MP3 Pro: offers sound quality at half bit rate of a regular MP3.
MP3: MPEG, Layer 3
RealAudio: a delivery mechanism for streaming audio over the net.
November 12, 2009 at 3:52 pm
BERTHA PEREZ
*Well, a codec is a small “compression-decompression” program that helps large files travel across the internet quickly
*The compression ratio of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its largest capacity to its smallest capacity
*A lossy compression method is one where compressing data and then decompressing it retrieves data that is different from the original, but is close enough to be useful in some way.
*n telecommunications and computing, bitrate (sometimes written bit rate data rate or as a variable R or fb is the number of bits that are conveyed or processed per unit of time.
*VBR stands for Variable Bit Rate. It’s a method of encoding audio to MP3 that allows for different sections of the file to be encoded at different bitrates, depending upon the demands of the source audio some type of sounds require a higher bitrate, others encode well using a lower bitrate.
*Short for constant bit rate, or Class A quality of service, an ATM bandwidth-allocation service that requires the user to determine a fixed bandwidth requirement at the time the connection is set up so that the data can be sent in a steady stream.
*In digital audio, bit depth describes the number of bits of information recorded for each sample. Bit depth directly corresponds to the resolution of each sample in a set of digital audio data. Common examples of bit depth include CD quality audio, which is recorded at 16 bits, and DVD-Audio, which can support up to 24-bit audio.
*Dynamic range is a term used frequently in numerous fields to describe the ratio between the smallest and largest possible values of a changeable quantity, such as in sound and light.
*Dynamic range is a term used frequently in numerous fields to describe the ratio between the smallest and largest possible values of a changeable quantity, such as in sound and light.
*This article is about the metadata format for MP3s. For the decision tree algorithm, see ID3 algorithm.
* RSS (most commonly translated as “Really Simple Syndication” but sometimes “Rich Site Summary is a family of web feed formats used to publish frequently updated works such as blog entries, news headlines, audio, and video in a standardized format.
November 12, 2009 at 3:55 pm
Gloriia Hernandez
1. CODEC IS ANYTIME DIGITAL AUDIO IS MENTIONED. IT’S THE SHORTENING OF COMPRESSOR/ DECOMPRESSOR. SOME CODECS ARE IMPLEMENTED IN SOFTWARE, SOME IN HARDWARE, AND SOME ARE LIMITED IN THEIR FUNCTIONALITY.
2.COMPRESSION RATIO IS THE RATIO BETWEEN THE SIZE OF THE ORIGINAL UNCOMPRESSED AUDIO CLIP AND ITS COMPRESSED VERSION.
3. LOSSY COMPREHENSION IS THAT WHICH ACTUALLY REMOVES SOME INFORMATION IN ORDER TO MAKE THE FILE EASIER TO COMPRESS. IT WORKS BY “PERCEPTUAL CODING.” LOSSLESS COMPREHENSION IS A WAY OF COMPRESSING MUSIC INTO A FILE THAT, WHEN PLAYED BACK, IS ABSOLUTELY IDENTICAL TO THE ORIGINAL.
4. BIT RATE THE HIGHER THE BIT RATE AT WHICH MUSIC IS ENCODED, THE BETTER THE SOUND IS. IT OFFERS GOOD COMPROMISE BETWEEN SOUND QUALITY AND DOWNLOAD TIME.
5. VBR IS VARIABLE BIT RATE WILL USE A LOWER BIT RATE IN AREAS OF THE SONG THAT ARE SIMPLER TO COMPRESS ACCURATELY. A VBR SOUND FILE WILL SOUND BETTER THAN A CBR FILE OF THE SAME SIZE. VBR IS HARD TO STREAM OVER THE INTERNET.
6. CBR IS CONSTANT BIT RATE AUDIO FILES ARE THE MOST COMMON. IT WILL USE ALOT OF KILOBITS TO DESCRIBE THE AUDIO IN EACH SECOND OF A SONG.
7. SAMPLE RATE REFERS TO HOW MANY TIMES PER SECOND THE ORIGINAL WAVEFORM IS TRANSLATED INTO DIGITAL FORM. BIT DEPTHS IS HOW MANY BITS ARE USED TO DESCRIBE EACH SAMPLES. THE MORE BITS USED TO ENCODE THE FILE, THE MORE ACCURATE THE SAMPLE.
8.
9. DCT IS DISCRETE COSINE TRANSFORM, IT IS A TECHNIQUE FOR REPRESENTING WAVEFORM DATA, SUCH AS AUDIO WAVES, AS A WEIGHTED SUM OF COSINES.
10. ID3 IS THE TAG EMBEDDED WITHIN AN MP3 FILE TAHT INCLUDES FIELDS FOR ARTIST, ALBUM, TITLE, TRACK NUMBER, YEAR AND A DHORT COMMENT.
11. MP3, MP3 PRO, WAV, AAC
November 12, 2009 at 3:58 pm
Cynthia Saenz
1. A shortening of compressors/decompressors-an algorithm used to compress data and then decompress it again. They are implemented in software, some in hardware, and some are limited in their functionality.
2.ratio between the size of the original uncompressed audio clip and its compressed version.
3.Lossy compression is that which actually removes some information in order to make the file easier to compress.
4.The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7.These are the most basic specifications of all digital audio files, compressed or not.
8.layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9.Short for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11.Windows Media Audio 9,Windows Media Audio 9 Professional,Windows Media Audio 9 Lossless,Windows Media Audio 9 Voice, and RealAudio.
November 12, 2009 at 4:01 pm
Adela Ramirez and Maritza Beltran
1.)Codec : An algorithm used to compress data and then decompress it again.
2.)Compression Ration : Is the ratio between the size of the original uncompressed audio clip and its compressed version.
3.)Lossy/Lossless : Removes some information in order to make the file easier to compress.
4.)Bit Rate : The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5.)VBR : Uses a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6.)CBR : Audio Files that are most common–they use up the exact same amount of data from one moment to the next.
7.)Sample Rate/Bit Depth: Sample rate refers to how many times per second the original waveform is translated into digital form. Bit Depth shows how many bits are used ti describe each of those samples.
8.)Dynamic Range : The range from the softest to the loudest sound a system can reproduce.
9.)DCT : is a technique for representing waveform data,such as audio waves, as a weighted sum of cosines.
10.)ID3 :The tag embedded within an MP3 file that includes fields for artist, album, title, track number,year, and a short comment.
11.) MP3 Pro- it’s backwards and forward compatible with MP3.
WAV-usually uncompressed, but a compressed standard achieves a 4.1 compression ration through an the lossy.
AAC- it supports sample rates up to 96KHz, twice the maximum afforded by MP3.
Windows Media Audio 9- it supports VBR encoding
Windows Media Audio Lossless- This is a VBR-only codec that produces absolutely perfect, mathematically lossless copies of an original audio file, including
24-bit/96KHz and 5.1 audio.
November 12, 2009 at 4:06 pm
Cristal Gonzales/ Omar Ramirez
1. codec=It’s a shortening of compressor/decompressor – an algorithm used to compress data and then decompress it again.
2. compression rationthis is the ratio between the size of the original uncompressed audio clip and its compressed version.
3. lossy/lossels= compression is just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
4. bit rateThe bit rate of a digital file is defined as how many bits it uses up in a given interval of time
5.VBR= music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately. VBR audio files are often made with a certain quality in mind, rather than a certain bit rate, but it’s almost always true that, all things being equal, a VBR sound file will sound better than a CBR file of the same size.
6.CBR=These common acronyms stand for Variable Bit Rate and Constant Bit Rate, respectively. Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7. Sample Rate/Bit Depth=Sample rate refers to how many times per second the original waveform is translated into digital form. CD audio, for instance, is sampled at 44.1KHz. That means that the left and right channels are each sampled 44,100 times per second.This is how many bits are used to describe each of those samples.
8. Dynamic range= this is the range from the softest to the loudest sound a system can reproduce
9. DCTShort for Discrete Cosine Transform, DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines
10. ID3The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment
11. major audio formats:mp3 is mpeg layer 3, mp3 pro equal sound quality at half bit rate of regular mp3,The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds. WAV files are usually uncompressed, but a compressed standard achieves a 4:1 compression ration through an the lossy ADPCM (Adaptive Differential Pulse Code Modulation) scheme that drops each sample down from 16 bits to 4 bits. There are several other compressed WAV formats, such as GSM, ALAW, and ULAW, but these are even less popular than ADPCM, aac advenced audio coding supports 48 full frequency sound channels, and wma windows media audio
November 12, 2009 at 4:07 pm
vanessa arriaga
1) Codec- any time digital audio is mentioned, this word gets thrown around. it’s a shortening of compressor/decompressor
2)compression ration-is the ratio between the size of the original uncompressed audio clip and its compressed version
3)Lossy/Lossless-lossy compression is that which actually removes some information in order to make the file easier to compress. Lossless compression is just what it sounds like a way of compressing music into a file that when played back, is absolutely identical to the original.
4)Bit rate-how many bits it uses up in a given interval of time
5)VBR- typically revolves around an average bit rate that you can specify during encoding.
6)CBR-it determines a fixed band width requirement at the time the connection is set up so that the data can be sent in a steady stream.
7)Sample rate/bit depth-it refers to how many times per second the original wave form is translated into digital form.
8)Dynamic range- it is the range from the softest to the loudest sound a system can reproduce.
9)DCT- a technique for representing waveform data such as audio waves.
10)ID3-includes fields for artist, album, title, track #, year, and a short comment.
11)5 majors- 1)MP3-it was developed in the late 80’sby the Fraunhofer Institute,
2)MP3 PRO- it claims to offer equal sound quality at half the bit rate of regular MP3.
3)WAV- usually uncompressed but a compressed standard achieves a 4:1 compression ratio through an the lossy ADPCM.
4)AAC-it can support up to 48 full frequency sound channels.
5)WMA9 PRO- it supports up to 24- bit/96KHz audio and sound formats up to 5.1 and even 7.1.
November 12, 2009 at 4:09 pm
Luz Lopez
1) Codec: Any time digital audio is mentioned, this word gets thrown around. It’s a shortening of compressor/decomposer- an algorithm used to compress data and then decompresses it again.
2) Compression Ratio: This is the ratio between the size of the original uncompressed audio clip and it’s compressed version.
3) Lossly: Compression which actually removes some information in order to make the file easier to compress.
Lossless: A way of compressing music into a file that when played back, it’s absolutely identical to the original.
4) Bit Rate: Defined as how many bits it uses up in a given interval of time.
5) VBR:Typically revolves around an average bit rate that you can specify during encoding.
6) CBR: To determine a fixed bandwidth requirement at the time the connection is set up so that the data can be sent in a steady stream.
7) Sample Rate: Sample Rate refers to how many times per second the original waveform is translated into digital form.
Bit Depth: The more bits used to encode the file, the more accurate the sample.
8) Dynamic Range: Range from the softest to the loudest sound a system can reproduce.
9) DCT: A technique for representing waveform data.
10) ID3: The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) 5 Major Audio Formats Are: 1. MP3- developed in the late 80’s by the Fraunhofer Institute. 2. MP3 Pro- Claims to offer equal sound and quality at half the bit rate of regular MP3. 3. WAV- Usually uncompressed, but a compressed standard achieves a 4:1 compression ratio through the lossy ADPCM. 4. AAC- It can support up to 48 full frequency sound channels.
5. WMA9 PRO- It supports up to 24- bit/96KHz audio and sound formats up tp 5.1 and even 7.1.
November 12, 2009 at 10:37 pm
Eduardo VAlenzuela-Jara (freshman)
1) An algorithm used to compress data and then decompress it again.
2) This is the ratio between the size of the original uncompressed audio clip and its compressed version.
3)A lossy compression method is one where compressing data and then decompressing it retrieves data that is different from the original, but is close enough to be useful in some way. Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data.
4) Bit Rate: Defined as how many bits it uses up in a given interval of time.
5) VBR:Typically revolves around an average bit rate that you can specify during encoding.
6) CBR: To determine a fixed bandwidth requirement at the time the connection is set up so that the data can be sent in a steady stream.
7. Sample rate refers to how many times per second the original waveform is translated into digital form.
8)What is Dynamic Range? in layman’s terms, this is the range from the softest to the loudest sound a system can reproduce
9.DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10.D3: The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) 5 Major Audio Formats Are: 1. MP3- developed in the late 80’s by the Fraunhofer Institute. 2. MP3 Pro- Claims to offer equal sound and quality at half the bit rate of regular MP3. 3. WAV- Usually uncompressed, but a compressed standard achieves a 4:1 compression ratio through the lossy ADPCM. 4. AAC- It can support up to 48 full frequency sound channels.
5. WMA9 PRO- It supports up to 24- bit/96KHz audio and sound formats up tp 5.1 and even 7.1.
November 13, 2009 at 10:28 am
Gabriel Alvarado P.1
1) Codec: any time audio is mentioned, this word gets thrown around
2) Compression Ratio: simply put, this is the ratio between the size of the original uncompressed audio clip and its compressed version.
3) Lossy Compression: that which actually removes some information in order to make the file easier to compress.
4) Lossless Compression: just what it sounds like – a way of compressing music into a file that, when played back, is absolutely identical to the original.
5) Bit Rate: a digital file is defined as how many bits it uses up in a given interval of time.
6) Variable Bit Rate: is a bit smarter.
7) Constant Bit Rate: audio files are the most common–they use up the exact same amount of data from one moment to the next.
8) Sample Rate: refers to how many times per second the original waveform is translated into digital form.
9) Bit Depth: is how many bits are used to describe each of those samples.
10) Dynamic Range: in layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
11) DCT: is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
12) ID3: The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
13) Major Audio Format
a. MP3: Contrary to what many people believe, this is not MPEG3 audio.
b. MP3 Pro: Thomson acquired this new format in 2001 from its Swedish partner company Coding Technologies, who developed it when researching a hearing device for the deaf.
c. WAV: The WAV standard was developed by Microsoft and IBM nearly two decades ago, and is the de-facto standard for basic Windows sounds.
d. AAC: Short for Advanced Audio Coding, AAC has been part of the MPEG-2 spec ever since the Motion Picture Experts Group declared it standard in April of 1997.
e. WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
November 13, 2009 at 11:43 am
Maria Ortiz
1. Codec: any time digital audio is mentoined this word gets thrown around its a mix of compressor and decompressor
2. compression ration: simply put together this is the ratio between the size of the origional uncompressed audio clip and its compressed version
3. Lossy/Lossless: lossy compression is that which actually removes some information in order to make it easier
4. Bit rate: defines how many bits it used up in given interval time
5. VBR: music file that will use a little bit of area
6. CBR:file of the same size
7. Sample rate/Bit depth:most basic specifics of all digital audio files
8. Dynamic range: this range is the range from the softes to the loudest sound in asystem
9. DCT: is a technique for representing waveform data
10. ID3: the tag ennabaled with in an Mp3
11. 5 major Audio Formats:
MP3: Contrary to what many people believe, this is not MPEG3 audio. It’s actually MPEG, layer 3.
MP3 PRO: Thomson acquired this new format in 2001 from its swedish partner company coding technologies, who developed it when researching a hearing device for the deaf.
WMA: Microsoft’s Windows Media Audio format has undergone many major changes in the past few years, with drastic improvements in quality, efficiency, and features.
WAV: The WAV standard was developed by Microsoft and IBM nearly tow decades ago, and is the de-facto standard for basic Windows sounds.
AAC: short for Advance Audio Coding, AAC has been part of the MPEG2 specever since the motion picture experts declared it standards in April of 1997.
November 13, 2009 at 12:15 pm
Alexis Ruiz
1) An algorithm used to compress data and then decompress it again.
2) This is the ratio between the size of the original uncompressed audio clip and its compressed version.
3) Lossy compression is that which actually removes some information in order to make the file easier to compress.
4) The bit rate of a digital file is defined as how many bits it uses up in a given interval of time.
5) A Variable Bit Rate is a bit smarter. A VBR music file will use a lower bit rate in areas of the song that are simpler to compress accurately, and then higher bit rates in parts that require more bits to describe accurately.
6)Constant Bit Rate audio files are the most common–they use up the exact same amount of data from one moment to the next.
7)Sample rate refers to how many times per second the original waveform is translated into digital form.
In layman’s terms, this is the range from the softest to the loudest sound a system can reproduce.
9) DCT is a technique for representing waveform data, such as audio waves, as a weighted sum of cosines.
10) The tag embedded within an MP3 file that includes fields for artist, album, title, track number, year, and a short comment.
11) MP3, MP3 Pro, WAV, AAC, WMA