A new statistical voice activity detection based on UMP test

Title
A new statistical voice activity detection based on UMP test
Authors
Kim, D.K.; Jang, K.W.; Chang, J.H.
Keywords
speech coding, speech enhancement
Issue Date
2007-11
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
This letter presents a new voice activity detection (VAD) method using a uniformly most powerful (UMP) test to improve the performance of Sohn. et al' VAD. The UMP test is employed to derive a redefined decision rule based on the likelihood ratio test (LRT). The proposed method provides the decision rule by comparing the magnitude of the noisy speech signal to the adaptive threshold estimated from the noise statistics. Experimental results show that the proposed VAD algorithm based on the UMP test outperforms those based on the widely used Gaussian distribution.
URI
http://dspace.inha.ac.kr/handle/10505/1828
ISSN
1070-9908
Appears in Collections:
College of Engineering(공과대학) > Electronic Engineering (전자공학) > Journal Papers, Reports(전자공학 논문, 보고서)
Files in This Item:
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