ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,369, issued on April 8, was assigned to Amazon Technologies Inc. (Seattle).

"Dereverberation and noise reduction" was invented by Amit Singh Chhetri (Sunnvale, Calif.), Mrudula V. Athi (Natick, Mass.), Pradeep Kumar Govindaraju (San Jose, Calif.) and Rong Hu (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system configured to improve audio processing by performing dereverberation and noise reduction during a communication session. In some examples, the system may include a deep neural network (DNN) configured to perform speech enhancement, which is located after an Acoustic Echo Cancellation (AEC) component. For example, the DNN m...