Suppose a 5G byte hard disk is used to store PCM data. If a voice frequency signal i5 sampled at 16 K samples/sec and the encoded PCM is to have an average SNR of at least 20DB, how many minutes of conversation can be stored on the hard disk (HD).
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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