ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,603, issued on Sept. 8, was assigned to GM Global Technology Operations LLC (Detroit).

"Speech features-based single channel voice activity detection method and system for reducing noise from an audio signal" was invented by Moshe Tzur (Petah Tikva, Israel) and Elior Hadad (Ness Tziona, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The single-channel, Speech Features-Based Voice Activity Detection (SFVAD) system is a robust, low-latency system that generates per-frame speech and noise indications, along with calculating a pair of speech and noise time-frequency masks. The SFVAD system controls an adaptation mechanism for a Beam-Forming system ...