ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,707,197, issued on Aug. 11, was assigned to DOLBY LABORATORIES LICENSING Corp. (San Francisco).
"Processing of microphone signals for spatial playback" was invented by David S. McGrath (Rose Bay, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are methods and systems which convert a multi-microphone input signal to a multichannel output signal making use of a time-and frequency-varying matrix. For each time and frequency tile, the matrix is derived as a function of a dominant direction of arrival and a steering strength parameter. Likewise, the dominant direction and steering strength parameter are derived from characteristics of the ...