Electronics > Projects, Designs, and Technical Stuff
Hearing Aid Amplifier (II)
WonderWheeler:
I am so jealous that your government will do that for you.
Yes, I like the idea of integrating a computer into an assisted hearing system. I am often sitting at a desk or using a fanny pack anyway, so there is no need for me to try to cram all the electronics into my ear, miniturizing even the battery. Its a bit crazy using a raspberry pi, but there is some sense to making a compartmentalized system. Yes even speech translation becomes a possiblilty
WonderWheeler:
Latest update:
So far its a complete failure. Finished the project, but it doesn't work. Had added a video screen to the Pi, but no image. No indication that it works at all. Nothing. Maybe the SD card was corrupted when the unit was powered down, don't know. Can't tell if it ever worked. The sound card hat for the Pi has pins on the bottom of the RCA jacks that could have pierced the battery UPS battery hat ,don't know. No joy in Mudville. Anyone have ideas? Seems to be a blind alley.
mrs:
The next step is to find out how to boot a Raspberry Pi and check that it booted correctly, e.g., [1,2].
[1] https://raspberrypihq.com/booting-the-raspberry-pi-for-the-first-time/
[2] https://projects.raspberrypi.org/en/projects/raspberry-pi-setting-up
WonderWheeler:
Yes, the first time I used the regular Windows 10 formatter, did not know I had to install a special SD Card Formatter program. That was part of the problem.
Had to install SD Card Formatter: https://www.sdcard.org/downloads/formatter/index.html
techman-001:
--- Quote from: Audioguru on November 25, 2018, 05:06:12 pm ---I am an old audio-loving guy. I love the sounds of nature, music and voices.
But I have normal-for-my-age (73) severe high frequency hearing loss but low frequencies have almost no loss.
I thought about making huge hearing aids until I had a free hearing test and demo hearing aids to try out.
They are tiny, the frequency response is perfect, they produce no noise and no distortion, they have compression that cannot be noticed (recordings, radio and TV audio compression is obvious and awful), they have 4 microphones with directionality, they have switched automatic noise reduction, and they have switched extra sensitivity and switched muting. They have wireless communication between each one and external products. They play a telephone sounds in both ears.
I am glad I bought them (partially paid by my government) instead of making them. They make my hearing young again and their tricks do things normal hearing cannot do.
--- End quote ---
They can also be enormously expensive around $10,000 AUD, so for some, making a kit may be the only affordable option.
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