本文首先研究了AMR声码器的算法，AMR声码器主要由多速率语音编码器、源控速率方案和错误消除机制三大部分组成。

First the paper studies the algorithms of AMR speech coder. The AMR speech coder consists of the multi-rate speech coder, a source controlled rate scheme, and an error concealment mechanism.

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本文首先研究了AMR声码器的算法，AMR声码器主要由多速率语音编码器、源控速率方案和错误消除机制三大部分组成。

First the paper studies the algorithms of AMR speech coder. The AMR speech coder consists of the multi-rate speech coder, a source controlled rate scheme, and an error concealment mechanism.

youdao