3G移动通信中优化过的语音压缩算法，可用语实际开发,3G mobile communication optimized voice compression algorithm, the actual language development can be

3rd Generation Partnership Project Technical Specification Group Services and System Aspects ANSI-C code for the Fixed-point Extended AMR - Wideband (AMR-WB+) codec (Release 7) -3rd Generation Partnership Project Technical Specification

C代码实现的AMR语音编解码。AMR多速率编解码技术相比原有的GSM语音编码器采用固定的编码速率，AMR语音编码器则可根据无线信道和传输状况来自适应地选择一种最佳信道模式（全速率或半速率）和信源编码模式（以比特率来区分）进行编码传输。-C code to achieve AMR voice codec. AMR multi rate coding and decoding technology of GSM speech coder is compared to the original fix