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http://dx.doi.org/10.6109/JKIICE.2009.13.10.2211

Performance Enhancement of Speech Communication System using Reverberation Rejection  

Kim, Se-Young (한국해양대학교 공과대학 전파공학과)
Kang, Suk-Youb (한국해양대학교 공과대학 전파공학과)
Kim, Ki-Man (한국해양대학교 공과대학 전파공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.10, 2009 , pp. 2211-2217 More about this Journal
Abstract
In this paper, we propose the speech enhancement algorithm using an one-microphone in a reverberant room environments. Spectral subtraction is the effective method which can reduce the reverberation element and the noise in a spectrum domain. Spectral subtraction needs correct separation of voice section and silent section therefore to improve the performance, voice activity detection(VAD) based on entropy has been applied to the proposed method. We test a performance of the proposed method by comparing with conventional method which used VAD based on energy detection. Reverberation reduction ratio with variable of SNR and a reverberation time is used as a test index. From the simulation result, proposed method shows performance better than conventional method.
Keywords
Speech enhancement; Spectral subtraction; VAD; Spectral entropy;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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