Patent ID: 8594353

Claim:
A hearing aid comprising: an ambient microphone configured to receive and convert environmental sound into an electronic input signal; a hearing loss processor configured to compensate the electronic input signal in accordance with a hearing loss of a user of the hearing aid, and to generate an electronic output signal; a receiver; an ear canal microphone configured for converting ear canal sound pressure including subsonic energy into an ear canal signal; an occlusion suppressor connected for reception and processing of the ear canal signal, and for transmitting an occlusion suppression signal; a signal combiner configured for combining the occlusion suppression signal and the electronic output signal to form a combined signal, and for transmitting the combined signal to the receiver; and a subsonic filter for filtering subsonic energy; wherein the receiver is configured to receive the combined signal, and convert the combined signal into an acoustic output signal; and wherein the receiver has a low frequency response with a lower cut-off frequency less than 10 Hz, or is capable of holding a static pressure in a sealed volume and having a rear cavity pressure equalization path to atmospheric pressure.