| CPC G10L 21/0224 (2013.01) [G10L 25/78 (2013.01); G10L 25/84 (2013.01); G10L 21/0208 (2013.01); G10L 2021/02166 (2013.01)] | 20 Claims |
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1. A method of detecting voice activity, the method comprising:
receiving a primary signal representative of acoustic energy in a detection region, the primary signal configured to include a speech component representative of a user's speech when the user is speaking;
receiving a reference signal representative of acoustic energy in the detection region, the reference signal configured to include a reduced speech component relative to the primary signal;
detecting a condition of the detection region, wherein the detected condition is indicative of an acoustic energy level in the detection region;
selecting a threshold value from among two or more values for determining whether the user is speaking, the threshold value selected based upon the detected condition in the region;
comparing the primary signal to the reference signal with respect to the selected threshold value; and
providing a binary indication of whether the user is speaking based at least in part upon the comparison.
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