METHOD FOR DETECTING A MALFUNCTION OF A HEARING INSTRUMENT AND HEARING INSTRUMENT

• Main Authors: MEYER, Vincent, MORITZ, Maxi Susanne, KUIPERS, Erwin, FREI, Christian
• Format: Patent
• Language: English; French; German
• Published: 07.09.2022
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The invention relates to a method for detecting a malfunction of a hearing instrument, the hearing instrument comprising at least one microphone, a receiver, a sound processor configured to process input sound signals from the microphone and to provide output sound signals to the receiver, and an active vent adjustable to be in one of at least two states, the method comprising a diagnosis comprising:- playing back a specific broadband sound with known characteristics by the receiver and/or switching the active vent back and forth to produce a click sound,- capturing the played back sound and/or the click sound by the at least one microphone to obtain an input sound signal,- analyzing a frequency response of the captured input sound signal by the sound processor,- wherein the frequency response is compared to a reference frequency response representing a properly functioning hearing instrument, wherein a malfunction is detected if the comparison yields any differences beyond a defined threshold, the method further comprising:- informing the user of a malfunction detected.