US 12,190,902 B1
Adaptive multi-stage output gain
Aditya Sharadchandra Joshi, Sunnyvale, CA (US); and Zhouhui Miao, Saratoga, CA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Feb. 15, 2022, as Appl. No. 17/672,298.
Int. Cl. G10L 21/0364 (2013.01); G10L 15/05 (2013.01); G10L 15/08 (2006.01); G10L 15/22 (2006.01); G10L 15/30 (2013.01); G10L 21/034 (2013.01); G10L 25/21 (2013.01)
CPC G10L 21/0364 (2013.01) [G10L 15/05 (2013.01); G10L 15/08 (2013.01); G10L 15/22 (2013.01); G10L 21/034 (2013.01); G10L 25/21 (2013.01); G10L 2015/088 (2013.01); G10L 2015/223 (2013.01); G10L 15/30 (2013.01)] 20 Claims
OG exemplary drawing
 
4. A computer-implemented method, the method comprising:
determining, by a device, audio data representing speech input received by the device;
generating, by the device, first modified audio data using the audio data and a first gain value;
generating, by the device, second modified audio data based at least in part on the audio data and a second gain value, the second gain value corresponding to wakeword detection;
determining, by the device and using the second modified audio data, a portion of the second modified audio data that represents a wakeword;
determining, by the device and based on the determining of the portion of the second modified audio data that represents the wakeword, a portion of the first modified audio data corresponding to the wakeword;
determining, by the device, first data representing one or more characteristics of the portion of the first modified audio data; and
sending, by the device, the first data to a remote device.