System and method for echo suppression for in-car communications
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United States of America Patent
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Jan 30, 2018
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app pub date -
Jan 4, 2017
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Jan 4, 2017
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Abstract
A system and method that enhances speech through reinforcement includes capturing an audio signal generated by the audio sources by one or more microphones; decomposing the audio signals into a plurality of virtual audio sources where the number of audio channels delivered by the audio sources is equal to the number of the plurality of virtual audio sources; estimating the echo paths from each of the plurality of virtual audio sources to the one or more microphones; and processing the captured audio signal in response to the estimated echo paths by subtracting the echo contributions of each of the virtual sources to the one or more microphones.
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