Some current challenges in multichannel acoustic signal processing

Kellermann W (2006)


Publication Language: English

Publication Type: Conference contribution

Publication year: 2006

Pages Range: 3177

Event location: Honululu, Hawaii US

DOI: 10.1121/1.4787963

Abstract

Hands‐free human/machine communication involves major challenges for today’s state of the art signal processing if the humans should not be forced to carry or wear any technical gear and should be free to move. The spatial domain sampled by multiple loudspeakers for reproduction and multiple microphones for signal acquisition allows for spatialized listening experiences and for spatially selective acoustic scene analysis, respectively. Along with the possibility to serve several human communication partners simultaneously, such systems also introduce the need for localization algorithms. Three main types of impairment have to be addressed by signal processing algorithms to fulfill the promises of the general concept: first, acoustic feedback from the loudspeakers into the microphones; second, ambient noiseand undesired pointlike interferers; and, finally, echoes and reverberation as picked up by the human ear when listening to the loudspeaker signals or as recorded by the microphonesthat actually should record only the direct‐path component of the source signal. Accordingly, some of the current challenges in multichannel acoustic echo cancellation, in spatially selective noise and interference suppression, in source separation and localization, and in dereverberation are investigated. © 2019 AIP Publishing LLC

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How to cite

APA:

Kellermann, W. (2006). Some current challenges in multichannel acoustic signal processing. In Proceedings of the 4th Joint Meeting of Acoustical Society of America and Acoustical Society of Japan,JASA (pp. 3177). Honululu, Hawaii, US.

MLA:

Kellermann, Walter. "Some current challenges in multichannel acoustic signal processing." Proceedings of the 4th Joint Meeting of Acoustical Society of America and Acoustical Society of Japan,JASA, Honululu, Hawaii 2006. 3177.

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