US 11,862,162 B2
Adapting an utterance cut-off period based on parse prefix detection
Patricia Pozon Aguayo, Sunnyvale, CA (US); Jennifer Hee Young Zhang, Campbell, CA (US); and Jonah Probell, Alviso, CA (US)
Assigned to SoundHound, Inc., Santa Clara, CA (US)
Filed by SoundHound, Inc., Santa Clara, CA (US)
Filed on Mar. 18, 2022, as Appl. No. 17/698,623.
Application 17/698,623 is a continuation of application No. 16/824,308, filed on Mar. 19, 2020, granted, now 11,308,960.
Application 16/824,308 is a continuation of application No. 15/855,908, filed on Dec. 27, 2017, granted, now 10,636,421, issued on Apr. 28, 2020.
Prior Publication US 2022/0208192 A1, Jun. 30, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 15/22 (2006.01); G10L 15/05 (2013.01); G10L 25/78 (2013.01); G10L 15/18 (2013.01); G10L 15/08 (2006.01); G10L 15/30 (2013.01); G10L 15/19 (2013.01)
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
OG exemplary drawing
 
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.