Q1. a) In an audio system music signal is band limited to 5kHz.lt is digitized so that the peak signal power to quantization noise power is at least 104dB. Calculate: i) The sampling rate if the signal is sampled at a rate 3.5 times the Nyquist rate; ii) The number of quantization levels; ii) Number of bits per sample. iv) Bit rate; and
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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