基于声卡的实时语音质量评价系统  

A Real-time Speech Quality Evaluation System Based on Soundcard

作　　者：刘文旭[1] 沈庭芝[1] 田卉[1] 刘朋樟[1] 

机构地区：[1]北京理工大学信息与电子学院,北京100081

出　　处：《电声技术》2009年第11期60-63,67,共5页Audio Engineering

摘　　要：针对目前语音质量评价系统成本高、设计复杂且不能实时评分,提出了基于声卡的实时评价系统。该系统以ITU-TP.862标准中的语音评价算法PESQ为核心,采用声卡作为语音播放和采集装置,利用多线程技术,以廉价的方式实现语音实时评分。并且,以虚拟仪器Labwindows/CVI为平台,方便显示从PESQ算法中提出的语音参数。测试表明,该系统评分准确,可快速判断和分析语音设备的性能。In order to solve the problem that speech quality evaluation system is costly and complex, and can not work in real-time, a real-time system is introduced. Using PESQ algorithm in ITU-T P.862 Recommendation, soundeard and multithread technology, the system can provide real-time MOS score in an economical way. Labwindows/CVI virtual instrument platform is used to display speech parameters extracted from PESQ conveniently. Tests show that the system can evaluate and analyze speech device accurately in real-time.

关 键 词：PESQ 虚拟仪器 声卡 实时 多线程 

分 类 号：TN912[电子电信—通信与信息系统]