Quantization step parameter initial value determining device and the quantization step parameter initial value determination method, as well as the quantization step parameter initial value determination program

摘要

PROBLEM TO BE SOLVED: To decrease a number of times of quantization processes. SOLUTION: In a quantization step parameter initial value determining device 1 for calculating a quantizing step parameter initial value q0 of a non-linear quantizer for calculating a discrete signal I from a quantizing step Q found from a quantizing step parameter (q) and an analog signal X, a parameter initial value calculation means 2 is provided for calculating the initial value q0 of the quantizing step parameter (q) on the basis of a maximum value Xmax of the applied analog signal and a maximum limit value Ilim of the quantizing step parameter (q).