本文论述利用语音的波形编码技术中自适应差分脉码调制.将8位码的语音数据区缩成四位数据的方法和程序。
This paper introduces the way and programme of compressing a speech ADPCM code from 8 bit to 4 bit , by the technology of adaptive differential pulse modulation in speech waveform coding .
自适应差分脉码调制