Geotagged environmental audio for enhanced speech recognition accuracy
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United States of America Patent
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Mar 25, 2014
Grant Date -
Sep 12, 2013
app pub date -
Apr 12, 2013
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 an audio signal that corresponds to an utterance recorded by a mobile device, determining a geographic location associated with the mobile device, identifying a set of geotagged audio signals that correspond to environmental audio associated with the geographic location, weighting each geotagged audio signal of the set of geotagged audio signals based on metadata associated with the respective geotagged audio signal, and using the set of weighted geotagged audio signals to perform noise compensation on the audio signal that corresponds to the utterance.
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