Audio system to determine spatial audio filter based on user-specific acoustic transfer function

• Main Authors: Satongar, Darius A, Jupin, Peter Victor, Lorho, Gaëtan R, Sheaffer, Jonathan D, Johnson, Martin E
• Format: Patent
• Language: English
• Published: 11.06.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PHYSICS; PUBLIC ADDRESS SYSTEMS; STEREOPHONIC SYSTEMS

An audio system and a method of using the audio system to determine one or more of a head-related transfer function (HRTF) or a headphone equalization (HpEQ) filter for a user, are described. The audio system can determine an acoustic transfer function that relates an output signal detected by a microphone of a headphone worn by the user to an in input signal played by a speaker of the headphone. The acoustic transfer function corresponds to sound reflecting from a pinna of the user between the speaker and the microphone, and accordingly, the acoustic transfer function is user-specific. The user-specific acoustic transfer function can be used to determine the HRTF or the HpEQ filter for the user. Other aspects are also described and claimed.