基于FPGA的语音录制与回放系统  

Voice Recording and Playback System Based on FPGA

作　　者：曾繁政[1] 王明娟[2] 曲艺[2] 李立礼[1] 

机构地区：[1]贺州学院,广西贺州542800 [2]钦州学院,广西钦州535000

出　　处：《现代电子技术》2010年第16期66-68,共3页Modern Electronics Technique

基　　金：广西教育厅资助项目(200911MX249)

摘　　要：系统用FPGA实现了I2C总线控制器,以Altera公司的NiosⅡ嵌入式软处理器为核心,结合高品质数字信号音频编/解码芯片WM8731成功地实现了语音的录制及回放功能,同时利用Matlab7.0.4软件对所采集的语音数据进行仿真。系统采用SoPC技术,自行设计采集模块和I2C协议驱动模块,并通过AWALON总线挂载在Nios软核上实时高速采集与回放。实践表明,系统具有集成度高,稳定性好,实时性强的特点。The system achieves the I2C bus controller in the FPGA,the voice recording and playback functions are realized successfully in combination with high-quality digital signal audio encoder/decoder chip WM8731 based on Altera Corporation NiosII embedded soft processor.At the same time,the collected voice data is simulated taking advantage of MATLAB 7.0.4.The system uses SoPC technology to design their own acquisition module and I2C protocol driver module,and carries on real-time and high-speed acquisition and playback through AWALON bus mounted on NIOS soft-core.Practice shows that the system has high integration,good stability and high real-time performance.

关 键 词：SOPC FPGA I2C总线 WM8731 

分 类 号：TN495-34[电子电信—微电子学与固体电子学]