Discussion
Match each quantity with the parameter that sets it.
List I
A. Highest frequency carried
B. Quantisation noise
C. Aggregate bit rate
List II
P. Sampling rate
Q. Word length
R. Both, times the channel count
Select the correct match.
Answer: A
The pairing is A-P, B-Q, C-R. Sampling rate and word length are the two independent levers, one governing bandwidth and the other governing resolution, and the bit rate is their product multiplied by the number of channels. Seeing which quantities are independent and which are derived is what makes a coder's specification tractable rather than a list of numbers to be learned.
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