基于DSP的人工电子耳语音信号处理的研究

Study on Speech Signal Processing for Cochlear Implants Based on DSP

介绍人工电子耳的基本原理和CIS语音信号处理方案,提出基于DSP芯片TMS320LF2407的硬件电路设计和软件编程 流程,最后通过计算机对经过DSP处理后的语音数据进行了仿真和合成,实验结果表明合成语音与原始语音在频谱包 络特征上非常相似。

This paper introduces the working principle of cochlear implants, and its continuous interleave sampling (ClS)speech signal processing method, presents the design of the electronic circuit and the flow chart of software programming. A computer-based acoustic simulation method is used to simulate and synthesize the speech signals processed by DSP. The experimental result shows that the synthesis speech signal is similar to the original speech signal in its frequency envelope.