CPC G10L 15/22 (2013.01) [G10L 15/05 (2013.01); G10L 15/1822 (2013.01); G10L 25/78 (2013.01); G10L 15/19 (2013.01); G10L 15/30 (2013.01); G10L 2015/088 (2013.01)] | 15 Claims |
1. A method comprising:
detecting periods of voice activity and periods of no voice activity within a plurality of spoken words;
parsing the plurality of spoken words according to a first grammar and a second grammar determining whether the plurality of spoken words is a complete parse according to the first grammar and a prefix to another complete parse according to the second grammar;
accessing a no voice activity detection (NVAD) cut-off period calculated from prior speech; and
scaling the NVAD cut-off period, which prevents pre-mature cutting off slow voice activity and improves responsiveness to fast voice activity, based at least in part on determining whether the plurality of spoken words is a complete parse according to the first grammar and a prefix to another complete parse according to the second grammar.
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