ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,434, issued on April 7, was assigned to Dolby Laboratories Licensing Corp. (San Francisco).

"Control of speech preservation in speech enhancement" was invented by Jundai Sun (Beijing) and Lie Lu (Dublin, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for performing denoising on audio signals is provided. In some implementations, the method involves determining an aggressiveness control parameter value that modulates a degree of speech preservation to be applied. In some implementations, the method involves obtaining a training set of training samples, a training sample having a noisy audio signal and a target denoising mask. In some ...