Deck 12: Digital Audio

Question 1

An advantage of digital recording is ___________________.

A) better mixes.
B) random access.
C) louder mixes.
D) recording by ones and zeros.

Answer 1

B

Question 2

Digital recording eliminates noise from ________________.

A) the studio.
B) the mixing console.
C) the microphones.
D) the recording medium.

Answer 2

D

Question 3

In digital recording, the signal from your mic preamp is first run through a ________ filter.

A) anti-aliasing
B) anti-imaging
C) lowpass
D) digital

Answer 3

A

Question 4

Converting an analog voltage to a digital number is called _______________.

A) magnetization
B) quantization
C) sampling
D) frequency conversion

Question 5

Following a D/A converter, an _____________ filter smoothes the steps in the analog signal.

A) anti-aliasing
B) anti-imaging
C) aliasing
D) analog-to-digital

Question 6

The sound quality of a digital recording depends mainly on ____________________.

A) the recording medium.
B) whether the signal is on hard drive or CD.
C) the A/D and D/A converters.
D) whether the signal is optical or electrical.

Question 7

The higher the bit depth (word length), the less the _______________.

A) distortion.
B) frequency loss.
C) sense of depth.
D) resolution.
E) all of the above.

Question 8

The higher the sampling rate, the more the ______________.

A) high-frequency extension.
B) resolution.
C) noise.
D) sense of depth.

Question 9

The bit depth and sampling rate on a CD are ________________.

A) 24-bit/94 kHz
B) 16-bit/44.1 kHz
C) 16 kHz/44.1-bit
D) whatever you want it to be

Question 10

The sound of a digital recording is different from analog because ______________.

A) the music is sampled into bits so some information is missing.
B) mp3 files are compressed audio.
C) digital's sampling rate is so much lower.
D) analog introduces tape noise, distortion, wow and flutter.

Question 11

Oversampling is sampling an audio signal ___________________ to reproduce the highest frequency in the signal.

A) at a higher rate than is needed
B) more than once
C) exactly twice the Nyquist frequency
D) exactly one-half the Nyquist frequency

Question 12

Sampling rate affects _____________.

A) dynamic range.
B) the high-frequency response.
C) the noise and distortion.
D) clipping.

Question 13

Bit depth affects ________________.

A) dynamic range.
B) the high-frequency response.
C) clipping.
D) the sampling rate.

Question 14

The file size of a digital recording depends on:

A) the number of tracks
B) the bit depth
C) the sampling rate
D) the duration of the recording.
E) all of the above.

Question 15

A meter reading of 0 dBFS means ______________.

A) the signal is clipping.
B) all 16 bits are on.
C) all bits are on.
D) all 24 bits are on.

Question 16

To reduce jitter, ____________________.

A) use the clock in the A/D converter.
B) do an A/D conversion.
C) increase the sampling rate.
D) increase the word length.

Question 17

Which is the fastest data-transfer protocol?

A) USB 2.0
B) FireWire
C) Thunderbolt
D) iOS

Question 18

When should you apply dither?

A) When the signal is noisy.
B) When you are converting a 24-bit signal to 16-bit.
C) Whenever you are reducing the sampling rate.
D) When you want granular distortion.

Question 19

If you record a 16-bit signal with a 24-bit DAW, the sound quality ________________.

A) gets better.
B) gets worse.
C) depends on the DAW manufacturer.
D) stays the same.

Question 20

An advantage of a flash-memory recorder is ________________.

A) portability.
B) no moving parts.
C) ability to store digital audio.
D) small size.
E) all of the above.

Question 21

To prevent damaging a recorded CD-R, label it with ________________.

A) a paper label.
B) a ballpoint pen.
C) a CD marker.
D) a permanent marker.

Question 22

PQ code editing lets you ____________________.

A) control phase and quantization.
B) set the polarity and "Q" of an equalizer.
C) set the start time of each song on a CD-R.
D) control mp3 bitrate and ISRQ codes.

Question 23

An advantage of a multitrack hard-drive recorder is _______________.

A) it's more reliable than a computer DAW.
B) best sound quality of all the digital formats.
C) ability to backup recordings.
D) works equally well for CD-R or mp3 recordings.

Question 24

To back up a session's wave files means to copy them to ___________________.

A) an external hard drive.
B) another storage medium.
C) another folder.
D) another filename.