An improved voice activity detection algorithm employing speech enhancement preprocessing

被引：0

作者：

Lee, Y.-C. ^{[1
]}

Ahn, S.-S. ^{[1
]}

机构：

[1] Dept. of Electronics and Info. Eng., Korea University, Jochiwon, Korea, Republic of

来源：

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences | 2001年 / E84-A卷 / 06期

关键词：

Algorithms - Code division multiple access - Computer simulation - Packet networks - Signal to noise ratio - Speech recognition - Statistical methods;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, we first propose a new speech enhancement preprocessing algorithm by combining power subtraction method and maximal ratio combining technique, then apply it to both energy-based and statistical model-based VAD algorithm to improve the performance even in low SNR conditions. We also perform extensive computer simulations to demonstrate the performance improvement of the proposed VAD algorithm employing the proposed speech enhancement preprocessing algorithm under various background noise environments.

引用

页码：1401 / 1405

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