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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Hauptverfasser: JIN, Wenyu, KLEIJN, Willem Bastiaan, SHERSON, Thomas, SETIAWAN, Panji
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creator JIN, Wenyu
KLEIJN, Willem Bastiaan
SHERSON, Thomas
SETIAWAN, Panji
description 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.
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subjects 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
title DETERMINING A ROOM RESPONSE OF A DESIRED SOURCE IN A REVERBERANT ENVIRONMENT
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