| 摘要 |
A hearing-aid device and that permits individuals other than the wearer of the hearing-aid to monitor and adjust one or more of the various characteristics (e.g., amplification, tonal quality, etc.) of sound provided to the wearer. The hearing-aid system of the present invention includes a small, sound input unit, a hand-held remote control unit, and a pair of stereophonic earphones. The sound input unit includes a pair of stereophonic microphones for sensing sound in the ambient environment. Each of the microphones are connected to respective controllable amplifier means for controllably amplifying and/or otherwise modifying the sound sensed by the microphones. The remote control unit is connected to the input unit and has a parameter adjustment means for controlling various functional parameters of the system. The parameter adjustment means includes volume adjustment means for controlling the degree of amplification applied to sound sensed by the microphone means. The headphones are connected to the system and receive amplified electrical audio signals from the amplifier means. The volume adjustment means includes separate means for respectively increasing and decreasing the volume of sound reaching the wearer of the stereophonic headphones, and volume indicator means for visibly displaying an indication of the volume level of amplified sound reaching the wearer of the headphones.
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