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// Example no 8.2
// To compute transmission bit rate, average and peak signal to quantization noise ratio
// Page no. 424
clc;
clear all;
// Given data
fs=8*10^3; // Sampling frequency in Hz
n=8; // Number of bits per sample
stepsize=10*10^-3; // Time after which step size is recomputed
overhead=5; // Number of overhead bits
N=fs*n; // Number of information bits pe second
Toverhead=overhead/stepsize; // The number of overhead bits/second
// Effective transmission bit rate
bitrate=N+Toverhead; // Transmission bit rate in bps
// Peak signal to quantization noise ratio
PSQNR=6.02*n+4.77; // Peak signal to quantization noise ratio in dB
// Average signal to quantization noise ratio
ASQNR=6.02*n; // Average signal to quantization noise ratio in dB
// Displaying the result in command window
printf('\n Effective transmission bit rate = %0.1f kbps',bitrate*10^-3);
printf('\n Peak signal to quantization noise ratio = %0.2f dB',PSQNR);
printf('\n Average signal to quantization noise ratio = %0.2f dB',ASQNR);
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