DEVICE, METHOD AND PROGRAM FOR DETERMINING INITIAL VALUE OF QUANTIZING STEP PARAMETER

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).