DETERMINING A ROOM RESPONSE OF A DESIRED SOURCE IN A REVERBERANT ENVIRONMENT

The present disclosure relates to an apparatus and method for determining a room response of a desired source in a reverberant environment from an observed signal received by a plurality of microphones, wherein a direct-path steering vector for the plurality of microphones is determined based on a k...

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Bibliographische Detailangaben
Hauptverfasser:	JIN, Wenyu, KLEIJN, Willem Bastiaan, SHERSON, Thomas, SETIAWAN, Panji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SOUND-PRODUCING DEVICES SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TESTING
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Beschreibung
Zusammenfassung:	The present disclosure relates to an apparatus and method for determining a room response of a desired source in a reverberant environment from an observed signal received by a plurality of microphones, wherein a direct-path steering vector for the plurality of microphones is determined based on a known direction and/or location of the desired source, a reverberant- path steering vector for the plurality of microphones is determined that maximizes a cross moment of a direct-path response to the observed signal and a reverberant-path response to the observed signal, and the room response is determined based on a combination of the direct-path steering vector and the reverberant-path steering vector. The signal power contained in the reverberant components of the observed signal is hence used to improve the signal-to-interference-plus-noise ratio of the target signal without additional knowledge as compared to a conventional direct-path beamformer.