基于DSP的实时语音处理系统的设计.doc

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基于DSP的实时语音处理系统的设计.doc

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目录摘要·································································Ⅲ ABSTRACT·····························································Ⅳ 1绪论语音处理研究状况······················································1 语音处理的硬件基础和应用··············································4 2系统硬件部分概述 2.1 DSP系统设计概述······················································6 2.2 系统的总体构成·······················································7 2.3 硬件系统核心芯片的选择···············································8 2.4 实时语音处理的基本要求···············································9 3设计部分 3.1 设计目的和要求·······················································10 3.2 设计原理·····························································10 3.3 设计内容·····························································11 3.3.1 理论依据··························································11 3.3.2 信号特征分析······················································11 3.3.3 方案设计··························································11 3.3.4 方案论证··························································12 3.3.5 器件选型（硬件电路的设计）·········································13 4 软件设计 4.1 DSP软件开发工具和编程特点··········································25 4.2 软件设计··························································· 26 4.3 DSP初始化··························································27 4.4 音频采集程序······················································· 30 4.5 TMS320VC5402的并行引导装载分析和设计·······························32 总结与致谢·····························································34 参考文献·······························································35 附录·································································· 36 摘要提出一个基于TMS320VC5402的音频信号采集与处理系统。介绍了该系统的总体方案和硬软件设计。讨论了模/数(A/D)和数/模(D/A)转换电路的设计方法以及如何利用TMS320VC5402的多通道缓冲同步串口(McBSP)和PCM1800及PCM1744芯片接口来实现音频信号的采集和输出。实验证明：所设计的基于DSP的硬件和软件系统是一个很好的音频信号采集与处理系统。多通道缓冲同步串口音频信号TMS320VC5402；采集与处理DSP-based real-time voice processing system Abstract Abstract: A TMS320VC5402-based audio signal acqui