Bob LaFrance
2019-04-27 19:37:09 UTC
I am semi retired EE with NIHL. I spent quite a bit of time in a 5" gun mount. The doctor asked me when the tinnitus started. I answered when the first shell was fired. It lasted a long while afterward and would take a few days for hearing to return to normal This was almost 50 years ago. I had the typical notch at around 4kHz and now it is much worse. -10dB at 1kHz and down to -60dB at 4kHz. I would like to experiment with amplifiers to correct. Enough about me.
Would an amplifier with an inverse response to my hearing curve be a good place to begin with an ampifier design? I can get fairly close to +60dB at 4kHz. I can put a tilt control in which changes the slope from flat to the +60dB gain at 4kHz.
I've tried low cost designs off of Ebay with less than stellar results. I'm about to put some hardware together and thought I would throw this out there. The VA is quite stingy with their hearing aids so I thought I would plug along on my own. I'm hopeful that my design may be copied very inexpensively and provide some relief to others who can't afford $6k for a hearing aid. I know I'm over simplifying the problem - just looking for opinions on my sanity.
thanks
Roswell Bob
Would an amplifier with an inverse response to my hearing curve be a good place to begin with an ampifier design? I can get fairly close to +60dB at 4kHz. I can put a tilt control in which changes the slope from flat to the +60dB gain at 4kHz.
I've tried low cost designs off of Ebay with less than stellar results. I'm about to put some hardware together and thought I would throw this out there. The VA is quite stingy with their hearing aids so I thought I would plug along on my own. I'm hopeful that my design may be copied very inexpensively and provide some relief to others who can't afford $6k for a hearing aid. I know I'm over simplifying the problem - just looking for opinions on my sanity.
thanks
Roswell Bob