ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,705,020, issued on Aug. 11, was assigned to Sonos Inc. (Goleta, Calif.).

"Primary-ambient playback on audio playback devices" was invented by Christopher Pike (Manchester, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example techniques relate to primary-ambient playback of surround audio by audio playback devices. Example playback devices described herein may include multiple speakers, such as a forward-firing audio transducer and side-firing audio transducers. Using example techniques, such playback devices may perform primary-ambient decomposition to separate surround channels into primary' and ambient channels. The playback devices pl...