Hearing aid with amplitude compression achieved by clipping a mo

Details Hearing aid with amplitude compression achieved by clipping a mo Hearing aid with amplitude compression achieved by clipping a mo

1976-10-29

1977-10-04

Stellar, George G.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

179107FD, 333 14, H04R 2500

Patent

active

040525716

ABSTRACT:
A hearing aid is arranged to restrict the dynamic range of the audio input signal to be compatible with the range which is characteristic of the hearing defect of the user. By means of phase-shift modulation for example, the input signal is converted to a single sideband at HF which is then peak-clipped to a predetermined value. The effective degree of clipping is determined by the AGC level of an input amplifier which is controlled by the user. The clipped signal is restored to the audio band for reproduction at a preset level.

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