METHOD AND APPARATUS FOR RECOGNIZING WIND NOISE OF EARPHONE, AND EARPHONE

• Main Authors: WANG, Jiudong, LIU, Song
• Format: Patent
• Language: English; French; German
• Published: 02.08.2023
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; PUBLIC ADDRESS SYSTEMS; SOUND-PRODUCING DEVICES

The disclosure discloses a method and apparatus for recognizing wind noise of an earphone, and an earphone. The earphone includes a feedforward microphone located outside an ear and a feedback microphone located inside the ear. The method includes: a feedforward microphone signal collected by the feedforward microphone and a feedback microphone signal collected by the feedback microphone are acquired; Fourier transform is performed on the feedforward microphone signal and the feedback microphone signal to obtain a feedforward microphone frequency domain signal and a feedback microphone frequency domain signal; inverse feedback filtering processing is performed on the feedback microphone frequency domain signal to obtain an inverse feedback filtering processing result; inverse feedforward filtering processing is performed on the feedforward microphone frequency domain signal and the inverse feedback filtering processing result to obtain an inverse hybrid filtering processing result; and a wind noise recognition result of the earphone is obtained based on an interrelationship between the inverse feedback filtering processing result and the inverse hybrid filtering processing result. According to the disclosure, wind noise recognition is performed by using the existing microphones of the earphone, other microphones are not needed to be set additionally, the hardware cost is reduced, and the wind noise recognition effect is good.