低速率可重构声码器的研究与设计

为满足数字语音通信对高性能和高灵活性的应用需求，设计一种基于SELP语音编解码算法的具有可重构、高并行度、可编程、安全性等特点的声码器。介绍了该声码器的功能、设计目标、特征设计及其体系结构设计，并对四级可重构的ALU单元、数据通路单元等功能部件以及可变长VLIW专用指令集的设计进行描述。

Research and Design of Low Rate Reconfigurable Vocoder

For the purpose of high performance and high flexibility of digital speech communication, this paper expatiates one kind of special purpose processor for speech compression based on SELP algorithm, which characterizes reconfigurable, high degree of parallelism, programmable and safety. It discusses the main function, design goal, character design and architecture of the vocoder, and expands on the design of a variable length VLIW instruction set and function units, such as four-stage reconfigurable ALUs and data-path units.