A real-time implementation of constrained estimate-maximize algorithm for single-microphone speech enhancement

A real-time frequency-domain implementation of constrained estimate-maximize (EM) algorithm is presented to work on a single-microphone system. Our experiments based on a moderate speech database indicate that the performance of the proposed implementation is comparable with an off-line approach sub...

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Bibliographic Details
Published inIEEE transactions on consumer electronics Vol. 44; no. 2; pp. 370 - 375
Main Author Hu, Hwai-Tsu
Format Journal Article
LanguageEnglish
Published IEEE 01.05.1998
Subjects
Agricultural engineering
Agriculture
Autocorrelation
Bandwidth
Digital signal processing chips
IIR filters
Real time systems
Speech enhancement
Speech processing
Stability
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ISSN0098-3063
DOI10.1109/30.681952

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Summary:A real-time frequency-domain implementation of constrained estimate-maximize (EM) algorithm is presented to work on a single-microphone system. Our experiments based on a moderate speech database indicate that the performance of the proposed implementation is comparable with an off-line approach subject to a matching constraint. A DSP chip operated above 33 MHz is competent to carry out 6 iterations of the proposed algorithm with a delay time of 16 ms.
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ISSN:0098-3063
DOI:10.1109/30.681952