基于FPGA的语音信号采集回放存储系统的设计  

Design of Speech Signal Acquisition-Playback-Storage System based on FPGA

作　　者：路娜[1] 赵建平[1] 胡海凤[1] 张慧霞[1] 

机构地区：[1]曲阜师范大学物理工程学院,山东曲阜273165

出　　处：《通信技术》2013年第9期89-91,共3页Communications Technology

基　　金：国家自然科学基金项目(批准号:60976015);山东省自然科学基金项目(No.ZR2010FM023);信息功能材料国家重点实验室开题资助

摘　　要：系统构建了基于FPGA的语音信号采集存储系统,详细论述了I2C总线控制器,AUD_RAM,驱动器,WM8731各个模块的设计方法及功能,并给出了核心代码还有其控制流程。音频编解码芯片WM8731由于其具有高性能、低功耗等优点,在音频产品中得到广泛用。在QuartusⅡ9.0中完成设计,并在modelsim中完成仿真,实验结果表明,该系统能够可靠完成对人的语音信号的采集、回放与存储,回放时在输出端会听到清晰语音。The speech signal acquisition-playback-storage system based on FPGAis constructed, and I2C bus controller, AUD_RAM, drive, and the designs and functions of various WM8731 modules are described in detail, including the core code and its control process. Audio Codec WM8731, for its high quality and low power-consumption, is widely applied in audio products. The design in Ouartus II 9.0 is completed and the simulation in modelsim is done, and the experimental results indicates that the system could reliably implement acquisition, playback and storage of the human voice signal, and the playback could give clear voice at the output terminal.

关 键 词：语音信号 现场可编程门阵列 WM87 31 I^2C 

分 类 号：TN332.1[电子电信—物理电子学]