Home > Table of Contents


Proceedings of 2009 International Workshop on Information Security and Application (IWISA 2009)

Qingdao, China, November 21-22, 2009

Editors: Feng Gao and Xijun Zhu

AP Catalog Number: AP-PROC-CS-09CN004

ISBN: 978-952-5726-06-0

Page(s): 396-400

The Implementation of Speaker Recognition on VoIP Auditing in Gigabit High-speed Environment

        Limin Nie, Xuan Wang, Xiaorong Yi, and Jiancheng Lin

Full text:  PDF


VoIP(Voice over Internet Protocol) is low-cost, flexible and brings great convenience to people’s 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.

Index Terms

speaker recognition; VoIP Auditing; zero-copy; map memory; packet capture

Copyright @ 2009 ACADEMY PUBLISHER — All rights reserved