PROCESSING TIME DIMINISHING METHOD FOR VOICE CODING

摘要

In the pitch searching method of the voice signal at the voice signal coding process by the vocoder, the method comprises the steps of: detecting the positive interval of the correlation which is high self-correlation among pitch relay values of the mixed signal from the remained signal of the voice signal, selecting the pitch searching interval, and excluding a negative interval of the remained correlation from the pitch searching interval by using symmetrical characteristics of the self correlation.