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