编码、传输、存储和译码是语音数字传输和数字存储的必要过程。

随着语音通信技术的发展，压缩语音信号的传输带宽，增加信道的传输速率，一直是人们追求的目标。语音编码在实现这一目标的过程中担当重要的角色。

语音编码就是使表达语音信号的比特数目最小。-Coding, transmission, storage and decoding the digital voice transmission and process necessary for digital storage. With voice communication technology, compressed voice signal transmission bandwidth, increasing the transmission rate of the channel, has been one goal. Speech coding in the process of achieving this goal plays an important role. Expression of speech coding is to make the minimum number of bits of the voice signal.