A voice signal (which extends from 300HZ to 3333HZ in the frequency domain) is digitized by 32 levels PCM. The sampling rate is set to be 120% over the Nyquist rate. Find: (1) the maximum SNqR, (2) the output data bit rate, (3) the required bandwidth of the channel
Quantization and Resolution
Quantization is a methodology of carrying out signal modulation by the process of mapping input values from an infinitely long set of continuous values to a smaller set of finite values. Quantization forms the basic algorithm for lossy compression algorithms and represents a given analog signal into digital signals. In other words, these algorithms form the base of an analog-to-digital converter. Devices that process the algorithm of quantization are known as a quantizer. These devices aid in rounding off (approximation) the errors of an input function called the quantized value.
Probability of Error
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