The Implementation of Speaker Recognition on VoIP Auditing in Gigabit High-speed Environment
VoIP(Voice over Internet Protocol) is low-cost, flexible and brings great convenience to peoples life, but it also brings security problems such as cyber-crime issues. This paper aims to solve security problem by using speech recognition technology to identify the speaker automatically. The system uses zero-copy module to capture packets in high-speed environment. NIC driver sends packets to the applications directly to shorten the data transmitting path. It reduce the number of data copy and system call times, and avoid the system switching states frequently between core state and user state. Experiment shows that the high-performance zero-copy packet capture module can always reach wire-speed. In pattern recognition, the system applies MFCC as feature parameter, uses vector quantization (VQ) approach in speaker recognition module, and gets satisfactory result.
speaker recognition VoIP Auditing zero-copy map memory packet capture
Limin Nie Xuan Wang Xiaorong Yi Jianeheng Lin
Intelligent Computing Research Center,Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055
国际会议
2009 International Workshop on Information Security and Application(2009 信息安全与应用国际研讨会)
青岛
英文
396-400
2009-11-21（万方平台首次上网日期，不代表论文的发表时间）