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简要介绍了G .72 3.1编解码算法原理和TM130 0定点DSP芯片 ,针对该芯片的硬件结构特点 ,设计了一套运行于TM 130 0之上的实时语音信号采集_编解码_播放的可行方案。讨论了G .72 3.1语音编解码器在定点TM 130 0上实时实现的关键技术及在具体实现过程中的问题 ,并提出了相应的解决方法。试验结果表明 ,单片的TriMedia 130 0能实现至少 5路实时G .72 3.1语音编解码。
A brief introduction of G.72 3.1 codec algorithm principle and TM130 0 fixed-point DSP chip is given. According to the hardware structure of the chip, a set of feasible scheme of real-time voice signal acquisition-codec-play operation on TM 130 is designed . The key technologies of G.72.1 speech codec real-time implementation on fixed point TM 130 0 are discussed, and the problems in the concrete implementation process are discussed. Corresponding solutions are also proposed. The experimental results show that a single TriMedia 130 0 can achieve at least 5 real-time G.772 3.1 speech codec.