采用离散小波变换方法(Mallat算法)，实现对语音信号的双通道子带压缩编码。将语音信号中，C125Hz的低频区信号完全保留，在125Hz飞KHz频段的语音信号用小波分解逐级进行较为精确的量化并进行滤波，而将高频部分采用游程编，进而达到在保证语音信号原有特性的前提下大幅度的压缩语音信号的传输数据量-The use of discrete wavelet transform method (Mallat algorithm), to realize the dual-channel voice signal sub-band coding. Voice signal, C125Hz low-frequency signals completely retained in the 125Hz band fly KHz voice signal using wavelet decomposition level for more precise quantification and filtering, while the use of high-frequency part of Run-made, thus ensuring the voice signal under the premise of the original characteristics of a substantial compression of voice signals to transmit data volume of