DSP technology in audio processing is applied more and more widely field. At present in many speech processing systems are used in speech analysis module, spectrum analysis is carried out to collect sound and. High speed TMS320C5416DSP chip by the design of the system, the highest frequency can reach 160MIPS, can solve good system;the digital coding and decoding with 16~32 sampling accuracy of the chip TLV320AIC23, combined with the audio codec chip and TMS320C5416DSP is a mobile digital audio system, the speech analysis system is the ideal solution for. First, given the overall design and working diagram, and then gives the hardware system design and software design of voice recording system based on TMS320C5416DSP chip. Finally, the availability and practicability of the system is verified by simulation.%随着信息技术以及语音识别技术的不断发展,DSP 技术逐渐广泛应用于音频处理领域. 本文提出了采用的高性能的处理芯片TMS320C5416DSP,同时结合具有16~32位采样精度的芯片TLV320AIC23,语音数据FLASH存储器等,实现了移动音频录放系统、语音分析系统的方案.软件部分基于CCS环境下的C语言编程.将输入信号经AIC23采样后保存在外扩存储器中,再读入DSP,经过FIR滤波器滤除噪,最后进行离散傅立叶快速变换. 通过仿真实例验证了本系统的可用性和实用性.
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