US Patent Issued to Dolby International on April 7 for "Hum noise detection and removal for speech and music recordings" (Spanish Inventor)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,432, issued on April 7, was assigned to Dolby International AB (Dublin).

"Hum noise detection and removal for speech and music recordings" was invented by Chunghsin Yeh (Barcelona, Spain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described are methods of processing audio data for hum noise detection and/or removal. The audio data comprises a plurality of frames. One method incudes: classifying frames of the audio data as either content frames or noise frames, using one or more content activity detectors; determining a noise spectrum from one or more frames of the audio data that are classified as noise frames; determining one or more hum noise f...