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METHOD FOR IN-SITU MEASURING AND CORRECTING OR ADJUSTING THE OUTPUT SIGNAL OF A HEARING AID WITH A MODEL PROCESSOR AND HEARING AID EMPLOYING SUCH A METHOD
METHOD FOR IN-SITU MEASURING AND CORRECTING OR ADJUSTING THE OUTPUT SIGNAL OF A HEARING AID WITH A MODEL PROCESSOR AND HEARING AID EMPLOYING SUCH A METHOD
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机译:用一种方法就地测量,校正或调整助听器的输出信号的方法及一种使用助听器的方法
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摘要
The application relates to an in-situ method to measure and correct or adjust the sound signal presented to the eardrum by means of a hearing aid and a hearing aid employing such a method. The hearing aid comprises at least one microphone (1), at least one digital signal processor (2) for transforming the microphone signal into a transformed signal according to a desired transformation function, a receiver (3), a sensing means (4) for sensing the sound signal appearing in front of the eardrum and at least one comparison means (5). A model of the electroacoustic system of the ear and the hearing aid is established and stored in the hearing aid, which model simulates the sound signal in the earcanal in front of the eardrum. This model is adapted in response of an error signal generated in case the difference between the representation of the sensed signal and the simulated sound signal is above a predetermined threshold.
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