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Computer Sound output to Hearing Aids

Peter Baumgartner bssmusic at online.de
Sun Feb 6 19:46:35 EST 2000


Lawrence Tan wrote:
> 
> Dear All,
> 
> I am looking for a solution to interface two (2) hearing aids with the
> computer sound card via direct audio input (audio shoes). The problem
> I am facing is that the output from the sound card is too loud and the
> sound when heard from the hearing aids are very distorted. Is there a
> way to attenuate the sound (via software control) so that the sound
> will not sound distorted in the hearing aids.
> 
> Thanks.

Hallo Lawrence,
If I understood that right, You use an inductive transducer , which has
probably the wrong impedance and is overdriven by the Soundcard. Try
first a serial resistor of ca 1 kohm, 0,25 Watts or a Potentiometer 5
kohm lin, 0.5 Watts to reduce the signal-level

P. Baumgartner
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