1.
Answer:
a.
Express the Signal to
quantization noise ratio (SQNR) as a function of number of bits per sample.
b.
Telephone audio's
(speech) frequency band is 200-3400Hz, what would be an appropriate sampling
rate according to the Nyquist Theorem? What is the actual sampling rate in
practice?
2.
Answer
a.
What is the largest
(worst) quantization error?
b.
When is non-linear
quantization beneficial compared to linear quantization?
3.
Answer
a.
What is the data-rate of
CD-Audio? Show how you arrived at this value.
b.
Ten minutes of a MIDI
formatted audio takes 200KB. How many bytes does 10 mins of CD-Audio take.
4.
Answer
a.
The process of
quantization introduces noise (true/false).
b.
Quantization divides the
horizontal time axis and Sampling divides the vertical amplitude axis
(true/false).
c.
Human hearing frequency
range is _________ to __________.
d.
MIDI cannot represent
human voice (true/false).