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Statistical model-based voice activity detection using support vector machine
Cited 45 time in
Web of Science
Cited 53 time in Scopus
- Authors
- Issue Date
- 2009-05
- Citation
- IET Signal Processing, Vol.3 No.3, pp.205-210
- Abstract
- From an investigation of a statistical model-based voice activity detection (VAD), it is discovered that a simple heuristic way like a geometric mean has been adopted for a decision rule based on the likelihood ratio (LR) test. For a successful VAD operation, the authors first review the behaviour mechanism of support vector machine (SVM) and then propose a novel technique, which employs the decision function of SVM using the LRs, while the conventional techniques perform VAD comparing the geometric mean of the LRs with a given threshold value. The proposed SVM-based VAD is compared to the conventional statistical model-based scheme, and shows better performances in various noise environments. © 2009 The Institution of Engineering and Technology.
- ISSN
- 1751-9675
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