计算机应用 ›› 2012, Vol. 32 ›› Issue (05): 1463-1466.

• 典型应用 • 上一篇    下一篇

基于SOPC的说话人识别算法的实现与优化

何伟1,徐阳2,张玲2   

  1. 1. 重庆大学 通信工程学院,重庆 400030
    2. 重庆大学 通信工程学院,重庆400030
  • 收稿日期:2011-11-25 修回日期:2012-01-10 发布日期:2012-05-01 出版日期:2012-05-01
  • 通讯作者: 徐阳
  • 作者简介:何伟(1964-),男,重庆人,教授,主要研究方向:现代电子技术、图像信息处理;徐阳(1987-),男,浙江宁波人,硕士研究生,主要研究方向:嵌入式系统设计、信号与信息处理;张玲(1964-),女,重庆北碚人,教授,主要研究方向:智能信号处理与专用芯片设计、图像信息处理。
  • 基金资助:

    211工程三期建设(S-09102)

Implementation and optimization of speaker recognition algorithm based on SOPC

HE Wei1,XU Yang2,ZHANG Ling2   

  1. 1. College of Communication Engineering, Chongqing University, Chongqing 400030, China
    2. College of Communication Engineering, Chongqing University, Chongqing 400030,China
  • Received:2011-11-25 Revised:2012-01-10 Online:2012-05-01 Published:2012-05-01
  • Contact: XU Yang

摘要: 利用可编程片上系统(SOPC)灵活的可编程性和现场可编程门阵列(FPGA)强大的并行处理能力,在FPGA上实现说话人识别算法,并从识别速度和识别精度两个方面对系统进行优化。研究了说话人识别算法的原理,针对其特点构建了SOPC系统,用乒乓操作实现语音采集和处理,利用FPGA的硬件实现算法中较为耗时的模块,提高了识别速度,同时又利用遗传算法来生成模板码书,提高了识别精度。最终,实现对说话人身份进行识别的功能,系统具有较高的实时性和识别精度。

关键词: SOPC, FPGA, 说话人识别, 乒乓操作, 遗传算法

Abstract: Making use of the flexible programmability of SOPC (System On a Programmable Chip) and strong parallel processing ability of FPGA (Field Programmable Gate Array), the speaker recognition algorithm was implemented on FPGA, and the system was optimized in terms of identification speed and accuracy. The principle of speaker recognition algorithm got researched, and according to the characteristics, the SOPC was constructed. It used ping-pong operation to implement voice collection and processing, and used the hardware of FPGA to deal with some time-consuming modules in algorithm so as to quicken the recognition. It also used Genetic Algorithm (GA) to generate template codebook to improve the identification accuracy. Finally, the system realized the function of identity recognition with high real-time quality and accuracy.

Key words: SOPC, Field Programmable Gata Array(FPGA), speaker recognition, ping-pang operating, genetic algorithm

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