Geotagged environmental audio for enhanced speech recognition accuracy
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United States of America Patent
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Sep 11, 2012
Grant Date -
Oct 20, 2011
app pub date -
Apr 14, 2010
filing date -
Apr 14, 2010
priority date (Note) -
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Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhancing speech recognition accuracy. In one aspect, a method includes receiving geotagged audio signals that correspond to environmental audio recorded by multiple mobile devices in multiple geographic locations, receiving an audio signal that corresponds to an utterance recorded by a particular mobile device, determining a particular geographic location associated with the particular mobile device, generating a noise model for the particular geographic location using a subset of the geotagged audio signals, where noise compensation is performed on the audio signal that corresponds to the utterance using the noise model that has been generated for the particular geographic location.
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