Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.07b
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- Pages.865-868
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- 2000
An Improved Voice Activity Detection Algorithm Employing Speech Enhancement Preprocessing
- Lee, Yoon-Chang (Dept. of Electronics and Information Engineering Korea University) ;
- Ahn, Sang-Sik (Dept. of Electronics and Information Engineering Korea University)
- Published : 2000.07.01
Abstract
In this paper we derive a new VAD algorithm, which combines the preprocessing algorithm and the optimum decision rule. To improve the performance of the VAD algorithm we employ the speech enhancement algorithm and then apply the maximal ratio combining technique in the preprocessing procedure, which leads to maximized output SNR. Moreover, we also perform extensive computer simulations to demonstrate the performance improvement of the proposed algorithm under various background noise environments.
Keywords