Digital Images Answers

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3

Digital audio is stored in .

A
binary
B
analog
C
sound waves
4

The process of audio digitization converts the sound wave into a series of .

A
zeros and ones
B
zeros, ones, and twos
C
digits from zero to nine
5

Which of the following describes hertz? Select the best answer.

A
amplitude of a sound wave
B
frequency of a sound wave
C
loudness
6

Which of the following describes characteristics of a transducer?

A
a tool used to sample analog sound
B
a tool used to increase the loudness of sound
C
a tool used to convert one form of energy into another form of energy
D
a tool used to filter sound frequencies beyond the audible range
8

Sound wave 1 has a shorter wavelength than sound wave 2, but both waves have the same amplitude. What does this mean?

A
Sound wave 1 has a lower frequency.
B
Sound wave 1 has a higher frequency.
C
Sound wave 1 is louder.
D
Sound wave 1 is quieter.
9

What is the difference between a sound measuring 50 dB and another sound measuring 100 dB?

A
One sound is lower than the other.
B
One sound is quieter than the other.

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