US Patent 8131543 Speech detection
Patent 8131543 was granted and assigned to Google on March, 2012 by the United States Patent and Trademark Office.
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The subject matter of this specification can be embodied in, among other things, a method that includes receiving an audio signal, determining an energy-independent component of a portion of the audio signal associated with a spectral shape of the portion, and determining an energy-dependent component of the portion associated with a gain level of the portion. The method also comprises comparing the energy-independent and energy-dependent components to a speech model, comparing the energy-independent and energy-dependent components to a noise model, and outputting an indication whether the portion of the audio signal more closely corresponds to the speech model or to the noise model based on the comparisons.
US Patent 08131543 Speech detection US Patent 8131543 Speech detection
US Patent 08131543 Speech detection
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