... infinite set of possible signals is converted into a finite set The next step of encoding maps the finite set of discrete time, continuous amplitude signals into a finite set of discrete time, discrete ... its domain A discrete time, continuous amplitude signal has R as its range A discrete time, discrete amplitude signal has Z as its range Here, the focus is on discrete time signals Quantization ... signals Quantization is the process of approximating any discrete time, continuous amplitude signal into one of a finite set of discrete time, continuous amplitude signals based on a particular distortion...