Question 3:
When the compression method Law is used in PCM,the quantization signal-to-noise ratio for
>> 1 isapproximated by:
Where L is the number of quantization levels
a) Find this ratio in dB, according to the number of bits, for= 255.
Using the previous system, we would like to send a signal whosespectral components are between 300 and 3300Hz. The PCM signal isgenerated with a sampling rate of
8000 samples / s. The required signal-to-noise ratio is at least30 dB.
b) What is the minimum number of quantization levels and what
OR
OR