Graduate School and Research Center in Digital Sciences

Low delay filtering for joint noise reduction and residual echo suppression

Yemdji, Christelle; Mossi, Moctar; Evans, Nicholas; Beaugeant, Christophe

IWAENC 2010, International Workshop on Acoustic Echo and Noise Control, August 30-September 2nd, 2010, Tel Aviv, Israel

In mobile terminals speech quality is often degraded by acoustic echo and noise. Existing approaches to tackle these problems involves separated solutions. However, combined solution have been proposed recently. Low signal delay and reduced computational load are the main arguments in favor of joint noise and echo processing. Most such algorithms operate in the frequency domain. In recent works, the performance of low delay filtering structures, which could be used as alternatives to spectral weighting, have been studied for noise reduction and echo suppression separately. In this paper, we investigate these low delay approaches for joint noise reduction and echo suppression. Results show that the approach based on the inverse discrete Fourier transform performs as well as alternative approaches but with lower signal delay and reduced computational complexity

Document Bibtex

Title:Low delay filtering for joint noise reduction and residual echo suppression
Keywords:echo cancellation, echo postfiltering, linear
Type:Conference
Language:English
City:Tel Aviv
Country:ISRAEL
Date:
Department:Digital Security
Eurecom ref:3157
Copyright: Copyright VDE Verlag. Personal use of this material is permitted. The definitive version of this paper was published in IWAENC 2010, International Workshop on Acoustic Echo and Noise Control, August 30-September 2nd, 2010, Tel Aviv, Israel and is available at :
Bibtex: @inproceedings{EURECOM+3157, year = {2010}, title = {{L}ow delay filtering for joint noise reduction and residual echo suppression}, author = {{Y}emdji, {C}hristelle and {M}ossi, {M}octar and {E}vans, {N}icholas and {B}eaugeant, {C}hristophe }, booktitle = {{IWAENC} 2010, {I}nternational {W}orkshop on {A}coustic {E}cho and {N}oise {C}ontrol, {A}ugust 30-{S}eptember 2nd, 2010, {T}el {A}viv, {I}srael}, address = {{T}el {A}viv, {ISRAEL}}, month = {08}, url = {http://www.eurecom.fr/publication/3157} }
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