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Take a 18 question quiz to test and certify your knowledge of the tutorial-video course
AudioPedia 103 - Digital Audio Terms and Standards.
Get a mark of 80% or higher to pass this quiz!
1
Quantization distortion is...
harsh digital clipping of the audio wave
gradual clipping of the audio wave in the ADC
analog distortion associated with vacuum tube amplifiers
consistent low-level distortion in a digital recording
2
Digital audio represents the audio signal...
with a smooth continuous voltage
with pictograms
in 3D
with a string of binary numbers
3
Common bitrates for lossy audiofiles range from...
1,411-2.116 Mbps
16-24 Mbps
1-10 Mbps
128–256 Mbps
4
For modern DAWs, the standard bit resolution is...
8-bit
48-bit
24-bit
16-bit
5
In a traditional ADC, an Anti-Aliasing filter...
is a brickwall highpass filter
is a 4-pole lowpass filter
is a brickwall lowpass filter
a 2-pole lowpass filter
6
A codec is...
an encode-decode formula for reducing audio file size
a MIDI controller
a processor used in the creation of LPCM audiofiles
a digital database for different styles of music
7
A common standrad for "hi-res' digital audio is...
16/48
16/44.1
16/192
24/96
8
A DAC...
converts PCM audio to AAC
converts digital signals to analog
converts MIDI to audio
converts analog signals to digital
9
In an Analog-to-Digital Converter, Sampling...
generates a string of binary numbers
quantizes an analog wave
registers the changing amplitude of an analog wave at discrete points in time
genererates MIDI data
10
The two most common Linear PCM audiofile formats are:
Lossless and MP3
WAV & AIF
MP3 & MP4
WAV & AAC
11
Perceptual coding (used in lossy audio codecs) makes use of...
the psychoacoustic phenomenon of masking
the psychoacoustic phenomenon of pitch quantization
the psychoacoustic phenomenon of pitch-detection
the Nyquist theory
12
Current lossy codecs for audio files include...
MP3, MP4, AAC
PCM, LPCM
ALAC, FLAC
AIFF, WAV
13
An ADC...
converts digital signals to analog
converts analog signals to digital
converts PCM audio to MP3
is an Australian hard rock band
14
Dither is...
digital distortion from poor analog-to-digital conversion
bad
varying sample rates in multitrack audio ADCs
random noise added to a digital recording
15
The Nyquist Rule says that the Sample Rate...
must be exactly equal to the highest audio frequency
must be at least twice the highest audio frequency
should always be 44.1 kHz
must be at least half the highest audio frequency
16
The current standard method of oversampling is casually referred to as...
ADC sampling
1-bit sampling
lossy sampling
AC/DC sampling
17
In an ADC, Quantization...
filters the analog wave before sampling
generates a string of binary numbers
corrects the timing of the incoming analog wave
corrects the timing of the incoming MIDI notes
18
The two standard Sample Rates are...
88.2 kHz and 96 kHz
50 kHz & 100 kHz
44.1 kHz & 48 kHz
22.05 kHz & 24 kHz
AudioPedia 103
Digital Audio Terms and Standards
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