5114491
Beschreibung
Quiz von Dan Turner, aktualisiert more than 1 year ago
|
Erstellt von Dan Turner
vor mehr als 8 Jahre
|
|
Frage 1
Frage
CD audio is generally 'uncompressed'.
Antworten
-
True
-
False
Frage 2
Frage
Pulse Code Modulation is what:
Antworten
-
When audio is recorded in bursts.
-
A type of compression.
-
A digital representation of an analog wave.
-
An analog representation of a digital wave.
Frage 3
Frage
What term best explains the Shannon-Nyquist Sampling Theory?
Antworten
-
The sample rate must be greater than the bit depth.
-
The sample rate must be above 42.
-
The sample rate must be equal to or twice the highest frequency
-
The sample rate must be equal to or half the highest frequency
Frage 4
Frage
Which of the following statements are true? (Choose two answers)
Antworten
-
Bit Depth makes no difference to the quality of audio.
-
A higher Bit Depth increases dynamic range and allows a better recreation of the waveform.
-
A higher Sampling frequency increases dynamic range and allows a better recreation of the waveform.
-
A low Bit Depth causes waves to be distorted and unrealistic, no matter how high the sample rate.
Frage 5
Frage
How would you calculate the Data Rate of a PCM audio file?
Antworten
-
By multiplying Bit Depth, Sampling Frequency and the Number of Channels.
-
By dividing the Sampling Frequency by the Bit Depth
-
By adding Bit Depth, Sampling Frequency and Number of Channels.
-
By multiplying Bit Depth to the Sampling Frequency and then subtracting the Number of Channels.
Frage 6
Frage
A Stereo CD at Redbook quality has:
- A Bit Depth of 16 bits
- Bit-rate of 1.4 Mb/second.
Antworten
- True
- False
Frage 7
Frage
Two types of audio compression are:
[blank_start]Lossy[blank_end] Compression
and
Lossless Compression
Antworten
-
Lossy
Frage 8
Frage
Out of the following codec suffixes, choose two which belong to lossy compression codecs.
Antworten
-
.ogg
-
.wav
-
.flac
-
.ape
-
.aac
Frage 9
Frage
Lossy codecs use The [blank_start]Psychoacoustic[blank_end] Model to work around the limitations of human hearing.
Antworten
-
Psychoacoustic
Frage 10
Frage
The two types of masking which a codec uses are: [blank_start]Temporal[blank_end] Masking and [blank_start]Simultaneous[blank_end] Masking
Antworten
-
Temporal
-
Binaural
-
Face
-
Acoustic
-
Anonymous
-
Halloween
-
Instantaneous
-
Ingenious
-
Miscellaneous
-
Simultaneous
Frage 11
Frage
The MPEG codec uses 32 overlapping even bands.
Antworten
- True
- False
Frage 12
Frage
Fill in the gaps for this MPEG Layer 1 Bitstream:
Antworten
-
bit allocation
-
sub-band samples
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.