Data in bits can often be recorded into a more compact form for transmission, using a compaction algorithm.A related algorithm can recover the original form ;the entire sequence represents companding.

 
  • 二进制数据在传输时利用压缩算法进行压缩,接收后用相应的算法使其恢复到原来的形式,这整个过程叫压扩处理法。
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