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An improved adaptiv...
An improved adaptive gain equalizer for noise reduction with low speech distortion
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- Borgh, Markus, 1983- (author)
- Blekinge Tekniska Högskola,Institutionen för matematik och naturvetenskap,Limes Audio AB, Umeå
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Berggren, Magnus (author)
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Schüldt, Christian (author)
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- Lindström, Fredric (author)
- Limes Audio AB, Umeå
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Claesson, Ingvar (author)
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(creator_code:org_t)
- 2011-10-26
- 2011
- English.
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In: EURASIP Journal on Audio, Speech, and Music Processing. - : Springer. - 1687-4714 .- 1687-4722. ; 7
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https://bth.diva-por... (primary) (Raw object)
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https://asmp-eurasip...
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https://doi.org/10.1...
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Abstract
Subject headings
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- In high-quality conferencing systems, it is desired to perform noise reduction with as limited speech distortion as possible. Previous work, based on time varying amplification controlled by signal-to-noise ratio estimation in different frequency subbands, has shown promising results in this regard but can suffer from problems in situations with intense continuous speech. Further, the amount of noise reduction cannot exceed a certain level in order to avoid artifacts. This paper establishes the problems and proposes several improvements. The improved algorithm is evaluated with several different noise characteristics, and the results show that the algorithm provides even less speech distortion, better performance in a multi-speaker environment and improved noise suppression when speech is absent compared with previous work.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Keyword
- Speech enhancement
- Noise reduction
- Noise-level estimation
Publication and Content Type
- ref (subject category)
- art (subject category)
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