US 12,482,446 B2
Audio device with distractor suppression
Ting-Yao Chen, Zhubei (TW); Chen-Chu Hsu, Zhubei (TW); Yao-Chun Liu, Zhubei (TW); and Tsung-Liang Chen, Zhubei (TW)
Assigned to BRITISH CAYMAN ISLANDS INTELLIGO TECHNOLOGY INC., Grand Cayman (KY)
Filed by British Cayman Islands Intelligo Technology Inc., Grand Cayman (KY)
Filed on Aug. 11, 2023, as Appl. No. 18/448,514.
Prior Publication US 2025/0054479 A1, Feb. 13, 2025
Int. Cl. G10K 11/175 (2006.01); H04R 1/10 (2006.01)
CPC G10K 11/1754 (2020.05) [H04R 1/1083 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3012 (2013.01); G10K 2210/3038 (2013.01); G10K 2210/3045 (2013.01); H04R 2460/01 (2013.01)] 35 Claims
OG exemplary drawing
 
1. An audio device, comprising:
multiple microphones that generate multiple audio signals; and
an audio module coupled to the multiple microphones, comprising:
at least one processor;
at least one storage media including instructions operable to be executed by the at least one processor to perform a set of operations comprising:
producing multiple instantaneous relative transfer functions (IRTFs) using a first known adaptive algorithm according to multiple mic spectral representations for multiple first sample values in current frames of the multiple audio signals; and
performing distractor suppression over the multiple mic spectral representations and the multiple IRTFs using an end-to-end neural network to generate a compensation mask; and
a post-processing circuit that generates an audio output signal according to the compensation mask;
wherein each IRTF represents a difference in sound propagation between each predefined microphone and a reference microphone of the multiple microphones relative to at least one sound source; and
wherein each predefined microphone is different from the reference microphone.