Audio Technology Vocabulary
The following terms will be used throughout the course.  Make sure you know them!

Analog: Sound produced by a continuous electrical signal.

Digital: Sound produced by numerical data.

Audio:  Pertaining to the transmission, reception, or reproduction of sound.

BPM:  Beats per minute;  a measurement of tempo.

Sampling:  The act of taking a portion, or sample, of one sound recording and reusing it as an instrument or element of a new recording. This is typically done with a sampler which can be a piece of hardware or a computer program on a digital computer.

Loop:  An element of sound which is repeated by technical means.

Sequencer:  Software or hardware designed to trigger sounds at specific times, usually based on a tempo.

Channel:  The path of a single audio signal.

Sound:  The sensation of hearing by sensing vibrations transmitted through air or other medium.

Frequency:  The measurement of the number of events per unit of time.  The frequency of sound is the number of vibrations per second.  Humans can perceive frequencies as low as 20 Hz and as high as 20,000 Hz.

Hertz (Hz):  Measurement of frequency (cycles, or vibrations, per second).

Pitch:  The perceived frequency of a sound.

Microphone:  A device which turns sound waves into electrical signals.

Dynamic Microphone:  a microphone which does not require phantom power.  Less sensitive than a condenser microphone.  Better for recording loud or direct sound.

Condensor Microphone:  a microphone which requires phantom power.  More sensitive than a dynamic microphone.  Better for recording quiet or environmental sounds.

Tempo:  the speed of a rhythm or piece of music.

Phantom Power: power going from a recording device to a condenser microphone  (48v).

Volume:  the level of an audio signal (loudness).

Panning:  the level of an audio signal in relation to two channels (right and left).

Mono:  using one audio channel.

Stereo:  using two audio channels (right and left).