Method and apparatus for reducing acoustic feedback from a speaker to a microphone in a communication device

A method and apparatus to reduce acoustic feedback from a speaker to a microphone in a communication device. An audio signal can be reproduced by an apparatus. An audible signal of at least one near-end user can be voice activity detected at the apparatus. At least one audio output channel of multip...

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Bibliographische Detailangaben
Hauptverfasser:	Davis Giles T, Zurek Robert, Ivanov Plamen A
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION STEREOPHONIC SYSTEMS
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Beschreibung
Zusammenfassung:	A method and apparatus to reduce acoustic feedback from a speaker to a microphone in a communication device. An audio signal can be reproduced by an apparatus. An audible signal of at least one near-end user can be voice activity detected at the apparatus. At least one audio output channel of multiple audio output channels can be operated on to attenuate acoustic pressure representative of the audio signal near at least one microphone aperture location when the audible signal of the at least one near-end user is detected at the apparatus.