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A hybrid acoustic e...
A hybrid acoustic echo canceller and suppressor
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Lindström, Fredric (författare)
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Schüldt, Christian (författare)
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Claesson, Ingvar (författare)
- Elsevier, 2007
- 2007
- Engelska.
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Ingår i: Signal Processing. - : Elsevier. - 0165-1684. ; 87:4, s. 739-749
- Relaterad länk:
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https://bth.diva-por... (primary) (Raw object)
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Abstract
Ämnesord
Stäng
- Wideband communication is becoming a desired feature in telephone conferencing systems. This paper proposes a computationally efficient echo suppression control algorithm to be used when increasing the bandwidth of an audio conferencing system, e.g. a conference telephone. The method presented in this paper gives a quality improvement, in the form of increased bandwidth, at a negligible extra computational cost. The increase in bandwidth is obtained through combining a conventional acoustic echo cancellation unit and an acoustic echo suppression unit, i.e. a hybrid echo canceller and suppressor. The proposed solution was implemented in a real-time system. Frequency analysis combined with subjective tests showed that the proposed method extends the bandwidth, while maintaining high quality.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Acoustic echo cancellation
- AEC
- Acoustic echo suppression
- AES
- Wideband
- Hybrid
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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