Sampling rate conversion method and sampling rate conversion apparatus

摘要

A sampling rate conversion apparatus for performing sampling frequency conversion, on the basis of the ratio of the sampling frequency of the sampling frequency converted and the frequency of the operating reference clock, the sampling relative to the sampling timing of the sampling frequency after conversion operation reference clock per sampling clock detection unit and the sampling phase detector (1) to determine the phase, to detect the sampling period based on the sampling phase and (2), to filter the input signal, the sampling frequency converted based on a sampling period and a polyphase filter for generating a signal (3), the filter coefficient control unit for setting the filter coefficients to the polyphase filter 3 based on the sampling phase, and (4).