ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,015, issued on Jan. 27, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Speech enhancement" was invented by Chuanxin Tang (Redmond, Wash.), Zhiyuan Zhao (Redmond, Wash.), Chong Luo (Beijing) and Wenjun Zeng (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "In accordance with implementations of the subject matter described herein, a solution for speech enhancement is proposed. In this solution, a target time-frequency representation at least indicating intensities of an input audio signal at different frequencies over time is obtained. The input audio signal comprises a speech component and a noise component. Frequency cor...