Click HERE to answer and submit questions.  Answers can be found in Chapter 3 of the Audio in Media book.

Also, answer the questions below. Answers found in Ch. 3 & 4 of our book.

26. Each frequency has a wavelength. (p. 18)
a. true
b. false

27. The time relationship between two or more sound waves at a given point in their cycles is called: (p. 18)
a. acoustical phase
b. cycles per second
c. wavelength
d. none of the above

28. The elements of a sound envelope are: (p. 20)
a. A,D,S,R
b. timbre, frequency, pitch, amplitude
c. dynamics, frequency, velocity
d. decay, pitch, masking

29. Timbre is: (p. 20)
a. unidimensional
b. concerned with the loudness of specific sounds
c. tone quality or tone color
d. of little help distinguishing sounds

30. Acoustics is used to describe both the physical behavior of sound in a room and the human perception of sound. (p.23)
a. true
b. false

31. Which one of the following statements applies to psychoacoustics? (p. 23)
a. the study of auditory sensation in the ear
b. the study of human perception of sound
c. the study of sound waves that cause auditory sensation in the ear
d. the study of the physical behavior of sound waves in a room

32. Indirect sound reaches the listener before it interacts with any other surface. (p. 24)
a. true
b. false

33. When reflections become smaller and smaller and the time between them decreases until they are indistinguishable describes: (p. 24)
a. direct sound
b. early reflections
c. echo
d. reverberation

34. Reverberation is: (p. 24)
a. synonymous with echo
b. synonymous with delay
c. sound that reaches the listener before it reaches any other surface
d. creates acoustical spaciousness and fills out the loudness and body of a sound

35. The time it takes a sound to decrease 60 dB-SPL after its steady-state sound level has stopped is known as: (p. 24)
a. reverberation time
b. delay time
c. release time
d. stop time

36. When the direct sound is delayed by 35 milliseconds or more, the listener perceives: (p. 25)
a. early reflections
b. decay
c. echo
d. reverberation

37. Flutter echoes are: (p. 25)
a. short single echoes that come in rapid succession in a small room
b. absent in a large room
c. perceived only with electronic instruments
d. desirable because they enhance clarity

38. Rooms with reverberation times of one second or more are considered to be: (p. 25)
a. dry
b. live
c. distant
d. dead

39. Reverb and decay are the same (p.25)
a. true
b. false

40. Rock and roll has usually been recorded in relatively_______ studios. (p. 25)
a. “dead”
b. “live”
c. large
d. small

41. Clarity increases as the direct to reverberant sound ratio decreases. (p.26)
a. true
b. false

42. Noise: (p.28)
a. is found only in certain rooms and environment
b. is always external to our ears and selves
c. is unwanted sound
d. can be completely eliminated by correct studio design

43. Resonance results when a vibrating body: (p. 30)
a. continues to vibrate after the stimulus is removed
b. produces vibrato
c. adds to the original harmonics of a sound source
d. with the same natural frequencies as another body forces the second to vibrate

44. Except for bass frequencies, sound behaves like light in that: (p. 31)
a. its angle of incidence equals its angle of reflectance
b. its angle of incidence equals its velocity
c. its angle of reflectance depends on the shape of the surface it hits
d. its angle of reflectance depends on the sound absorption coefficient of the material it hits

45. The uniform distribution of sound energy in a room so that its intensity throughoutb the room is approximately uniform is:(p. 35)
a. absorption
b. reflectance
c. decay
d. diffusion

46. Ergonomics is: (p. 40)
a. designing an engineering system with the human element in mind
b. designing a studio complex on a cost-effective basis
c. designing the technical system of a studio
d. designing a studio’s signal flow

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