Experimental Study of Generalized Subspace Filters for the Cocktail Party Situation

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Abstract

This paper investigates the potential performance of generalized
subspace filters for speech enhancement in cocktail party
situations with very poor signal/noise ratio, e.g. down to
-15 dB. Performance metrics output signal/noise ratio, signal/
distortion ratio, speech quality rating and speech intelligibility
rating are mapped as functions of two algorithm parameters,
revealing clear trade-off options between noise, distortion
and subjective performances and a recommended choice
of trade-off. Given sufficiently good noise statistics, SNR
improvements around 20 dB as well as PESQ quality and
STOI intelligibility rating improvements exceeding 1.0 and
0.2 points respectively are found. This shows the potential of
the method.
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Details

This paper investigates the potential performance of generalized
subspace filters for speech enhancement in cocktail party
situations with very poor signal/noise ratio, e.g. down to
-15 dB. Performance metrics output signal/noise ratio, signal/
distortion ratio, speech quality rating and speech intelligibility
rating are mapped as functions of two algorithm parameters,
revealing clear trade-off options between noise, distortion
and subjective performances and a recommended choice
of trade-off. Given sufficiently good noise statistics, SNR
improvements around 20 dB as well as PESQ quality and
STOI intelligibility rating improvements exceeding 1.0 and
0.2 points respectively are found. This shows the potential of
the method.
Original languageEnglish
Title of host publicationProceedings IEEE ICASSP 2016
Number of pages5
PublisherIEEE
Publication date2016
StatePublished - 2016
Publication categoryResearch
Peer-reviewedYes
EventThe 41st IEEE International Conference on Acoustics, Speech and Signal Processing - Shanghai, China
Duration: 20 Mar 201625 Mar 2016
http://www.icassp2016.org/

Conference

ConferenceThe 41st IEEE International Conference on Acoustics, Speech and Signal Processing
LandChina
ByShanghai
Periode20/03/201625/03/2016
Internetadresse
SeriesI E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings
ISSN1520-6149

    Research areas

  • Speech enhancement, subspace signal processing, optimal filtering, babble noise, cocktail party
ID: 223572848