SYSTEMS AND METHODS FOR DETERMINING THE STATE OF HEARING AID WITH BONE CONDUCTION Russian patent published in 2023 - IPC H04R29/00 H04R25/00 

FIELD: acoustics.

SUBSTANCE: methods for determining the transfer functions of hearing aids and their diagnostics. The method for determining the state of a hearing aid with bone conduction consists of the stage of emitting sound through the loudspeaker, receiving sound by the microphone, generating a feedback signal. By means of the feedback analysis module, the transfer function of the feedback path from the loudspeaker to the microphone is determined based on the feedback signal and the first signal; receiving at least one predefined transfer function of the feedback path; and comparing the feedback path transfer function with at least one predefined feedback path transfer function; and determining, by means of the signal processing unit, a state of the bone conduction hearing aid based on comparison result. At the stage of determining the state of the bone conduction hearing aid based on the comparison result: if the feedback path transfer function is a normal feedback path transfer function, it is determined that the state of the bone conduction hearing aid is normal; or if the feedback path transfer function is abnormal, it is determined that the state of the bone conduction hearing aid is abnormal. The hearing aid consists of a microphone, a loudspeaker, a feedback analysis module and a signal processing module.

EFFECT: increased accuracy of hearing aid diagnostics.

9 cl, 10 dwg