Beamforming using uniform circular arrays for distant speech recognition in reverberant environments and double talk scenarios

TitleBeamforming using uniform circular arrays for distant speech recognition in reverberant environments and double talk scenarios
Publication TypeConference Paper
Year of Publication2012
AuthorsPessentheiner, H., Petrik S., & Romsdorfer H.
Conference NameInterSpeech 2012
Conference LocationPortland, Oregon, USA
Keywordsarray signal processing, beamforming, distant speech recognition, double-talk, reverberant environment, uniform circular array
Abstract

Beamforming is crucial for hands-free mobile terminals and voice-enabled automated home environments based on distant-speech interaction to mitigate causes of system degradation, e.g., interfering noise sources or competing speakers. This paper presents an adaptation of the most common state-of-the-art broadband beamformers to uniform circular arrays, such that competing speakers are attenuated sufficiently for distant speech recognition. As a result, a new beamformer is presented. Finally, the speech quality of the beamformers’ enhanced signals is evaluated with different objective speech quality measures and a word recognizer as a measure for the attenuation of competing speakers.

URLhttp://interspeech2012.org/
Citation Key2260
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