US Patent Issued to Amazon Technologies on Aug. 4 for "Per frame input estimation for post filter echo suppression" (California, Maryland Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,418, issued on Aug. 4, was assigned to Amazon Technologies Inc. (Seattle).

"Per frame input estimation for post filter echo suppression" was invented by Karim Helwani (San Mateo, Calif.), Michael Mark Goodwin (Scotts Valley, Calif.) and Erfan Soltanmohammadi (Silver Spring, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Per frame inputs for post filter echo suppression are determined. Captured audio data of a two-way communication that includes a far-end signal played via a speaker may be processed as different sub-bands of individual frames. A machine learning model may be applied that is trained to accept the different sub-bands of a frame and ...