低速率语音编解码专用处理器设计

An application specific processor for low bit rate speech coding

本文给出一种基于编码速率600bps的高质量声码器算法的专用处理器设计。介绍了语音编解码算法原理,专用处理器的体系结构,汇编器的开发和算法的移植。采用软硬件协同设计的方法,大大降低了算法的存储复杂度和运算复杂度,并在电路中验证了声码器地正确性。

The application specific processor based on the algorithm of 600bps vocoder is presented in this paper. The speech coding algorithm, the hardware architecture , the compiler and algorithm migration are introduced. Through HW/SW cooperation, memory cost and computation complexity are greatly reduced and verify the vocoder in circuit.