US 11,810,564 B2
Dynamic adjustment of wake word acceptance tolerance thresholds in voice-controlled devices
Daniel Bromand, Boston, MA (US); Joseph Cauteruccio, Boston, MA (US); and Sven Erland Fredrik Lewin, Stockholm (SE)
Assigned to Spotify AB, Stockholm (SE)
Filed by Spotify AB, Stockholm (SE)
Filed on Mar. 25, 2022, as Appl. No. 17/705,233.
Application 17/705,233 is a continuation of application No. 16/787,993, filed on Feb. 11, 2020, granted, now 11,308,959.
Prior Publication US 2022/0284898 A1, Sep. 8, 2022
Int. Cl. G10L 15/22 (2006.01); G10L 15/08 (2006.01); G10L 15/30 (2013.01); G10L 21/0232 (2013.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 5/027 (2006.01); G10L 21/0208 (2013.01); G10L 21/0216 (2013.01)
CPC G10L 15/22 (2013.01) [G10L 15/08 (2013.01); G10L 15/30 (2013.01); G10L 21/0232 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 5/027 (2013.01); G10L 2015/088 (2013.01); G10L 2015/223 (2013.01); G10L 2021/02082 (2013.01); G10L 2021/02166 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
at an electronic voice-controlled speaker device including an audio front end system having a microphone array, one or more processors, and memory storing instructions for execution by the one or more processors:
detecting, from the microphone array, an audio signal in an environment proximate to the audio front end system;
processing the audio signal using a plurality of wake word detection engines, including dynamically adjusting how many wake word detection engines are available for processing the audio signal; and
independently adjusting respective wake word detection thresholds for the plurality of wake word detection engines used to process the audio signal.