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EURASIP Journal on Audio, Speech, and Music Processing
EURASIP Journal on Audio, Speech, and Music Processing Cover Image
  • Research Article
  • Open Access

Multimicrophone Speech Dereverberation: Experimental Validation

EURASIP Journal on Audio, Speech, and Music Processing20072007:051831

https://doi.org/10.1155/2007/51831

©  K. Eneman and M. Moonen. 2007

  • Received: 6 September 2006
  • Accepted: 10 April 2007
  • Published:

Abstract

Dereverberation is required in various speech processing applications such as handsfree telephony and voice-controlled systems, especially when signals are applied that are recorded in a moderately or highly reverberant environment. In this paper, we compare a number of classical and more recently developed multimicrophone dereverberation algorithms, and validate the different algorithmic settings by means of two performance indices and a speech recognition system. It is found that some of the classical solutions obtain a moderate signal enhancement. More advanced subspace-based dereverberation techniques, on the other hand, fail to enhance the signals despite their high-computational load.

Keywords

  • Acoustics
  • Performance Index
  • Classical Solution
  • Speech Recognition
  • Experimental Validation

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Authors’ Affiliations

(1)
ExpORL, Department of Neurosciences, Katholieke Universiteit Leuven, O & N 2, Herestraat 49 bus 721, Leuven, 3000, Belgium
(2)
GroupT Leuven Engineering School, Vesaliusstraat 13, Leuven, 3000, Belgium
(3)
SCD, Department of Electrical Engineering (ESAT), Faculty of Engineering, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, Leuven, 3001, Belgium

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Copyright

© K. Eneman and M. Moonen. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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