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Noise Suppression Based on Extending a Speech-Dominated Modulation Band
KTH, School of Electrical Engineering (EES), Sound and Image Processing.
KTH, School of Electrical Engineering (EES), Sound and Image Processing.
2007 (English)In: INTERSPEECH 2007: 8TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION, VOLS 1-4, 2007, 1469-1472 p.Conference paper, Published paper (Refereed)
Abstract [en]

Previous work on bandpass modulation filtering for noise suppression has resulted in unwanted perceptual artifacts and decreased speech clarity. Artifacts are introduced mainly due to half-wave rectification, which is employed to correct for negative power spectral values resultant from the filtering process. In this paper, modulation frequency estimation (i.e., bandwidth extension) is used to improve perceptual quality. Experiments demonstrate that speech-component lowpass modulation content can be reliably estimated from bandpass modulation content of speech-plus-noise components. Subjective listening tests corroborate that improved quality is attained when the removed speech lowpass modulation content is compensated for by the estimate.

Place, publisher, year, edition, pages
2007. 1469-1472 p.
Keyword [en]
Modulation filtering, noise suppression, Hilbert envelope, perceptual quality, rectification
Identifiers
URN: urn:nbn:se:kth:diva-36099ISI: 000269998600368Scopus ID: 2-s2.0-56149125454ISBN: 978-1-60560-316-2 (print)OAI: oai:DiVA.org:kth-36099DiVA: diva2:430588
Conference
Interspeech Conference 2007 Antwerp, BELGIUM, AUG 27-31, 2007
Note
QC 20110711Available from: 2011-07-11 Created: 2011-07-08 Last updated: 2011-07-11Bibliographically approved

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Citation style
  • apa
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Language
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  • nn-NO
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  • Other locale
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Output format
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