ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,521, issued on April 7, was assigned to Apple Inc. (Cupertino, Calif.).
"Method and system for loudness compensation" was invented by Zhangli Chen (San Jose, Calif.), Brandon J. Rice (Pacifica, Calif.), Jarrett B. Lagler (San Francisco) and Jakub Mazur (Daly City, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method performed by an audio system that includes a headset for playing back audio, the method includes receiving an audio signal having audio content, determining a characteristic of the audio content, determining a parameter of the headset, producing a filtered audio signal by applying an equalization (EQ) filter to the audio signal...