Electronics > Projects, Designs, and Technical Stuff
Hearing Aid Amplifier (II)
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WonderWheeler:
Being hard of hearing is not all bad.  I used to be super sensitive to things like babies crying, the scream of a Skil-saw, the buzzing of a honey bee around my head. The loss of high frequency sound for me has disabled much of that emotional reaction. Exposure to gun shots, explosions and gunfire from WWII reenactments, industrial noise from working in an almond huller, hammering on 2x4's while one was against my left ear, loud rock and roll music from headphones, riding in an empty metal frieght car on old tracks across the desert at full speed when I was 22, have left its mark.

Most of this stuff does not damage the hearing of women.  Because they are not exposed to it. But men like to do dangerous stuff, and will put up it.
BrianHG:
If you want to carry around a microphone & video camera following who you are looking at with an NVidia GPU for the required neural net processing horse power (plus battery pack to power it), with noise canceling headphones which have audio in, you can make a hearing aid which will completely roast to hell and back compared to anything you can buy today using this AI based speech separation technology:

https://youtu.be/rVQVAPiJWKU

Full article: https://looking-to-listen.github.io/
WonderWheeler:
Neural net computer is the hard part. Amazing concept though.

I was able to translate the ELV SMT preamp instructions article from their journal if anyone needs that, I can create a pdf of the two pages in English. I finally got 4 kits on the way. It turns out they don't ship directly outside the EU except the UK, so I had to use something called mailboxde.com as a third party to ship to me. Maybe ELV didn't want to put up with Trump's bs tarrifs and stuff. Work is progressing.
WonderWheeler:
Just finished the two preamplifers that go with the system This old dog was new to surface mounted kit making. Ended up getting some solder flux from Home Depot and used the toaster oven. Its taking a lot of time but its not all wasted, am learning stuff.
Audioguru:
A while ago I was blind with cataracts in both eyes. In addition to having free replacement lenses paid for by my government, I paid for eye surgery to correct astigmatism that most old people get.
The result is wonderful.
The result of me having my government partly pay and me to pay the remained for my modern hearing aids is also wonderful.
I am not rich but I do OK.

I think in the future, hearing aids will have a "Google Assistant" built-in with languages translations.
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