Multichannel cross-talk cancellation in a call-center scenario using frequency-domain adaptive filtering
Lombard A, Kellermann W (2008)
Publication Language: English
Publication Type: Conference contribution
Publication year: 2008
Conference Proceedings Title: Proc. Int. Workshop on Acoustic Echo and Noise Control (IWAENC)
Event location: Seattle, Washington
URI: http://www.iwaenc.org/proceedings/2008/contents/papers/9032.pdf
Abstract
We propose a multichannel residual cross-talk cancellation strategy to operate in environments where each microphone signal is dominated by one of several simultaneously active sound sources, like in a call-center scenario. The method relies on a two-step adaptive filtering scheme derived from an established GSC structure. The filter updates are performed in the frequency domain to allow an effective DFT-bin-wise adaptation control. This new scheme is applicable to an arbitrary number of competing sources and experiments conducted for three and seven speech sources show that it allows to reduce the amount of undesired cross-talk components by about 10dB, without noticeable distortion of the desired signal.
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How to cite
APA:
Lombard, A., & Kellermann, W. (2008). Multichannel cross-talk cancellation in a call-center scenario using frequency-domain adaptive filtering. In Proc. Int. Workshop on Acoustic Echo and Noise Control (IWAENC). Seattle, Washington, US.
MLA:
Lombard, Anthony, and Walter Kellermann. "Multichannel cross-talk cancellation in a call-center scenario using frequency-domain adaptive filtering." Proceedings of the Int. Workshop on Acoustic Echo and Noise Control (IWAENC), Seattle, Washington 2008.
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