I discovered Tympan while searching for others doing some DIY hearing aid projects.
Myself I was born deaf in one ear (SSD or single-sided deafness), in October of 2015 I was ‘sold’ the idea that there’s a device from a company Cochlear who makes a product called a BAHA 5. BAHA is a bone anchored hearing aid, that connects to your skull by either a magnet and metal disk under the skin, or a titanium abutment that protrudes through the skin.
I have the Attract method, which is the metal disk under the skin.
Short’n’sweet version: got the BAHA 5 and it really sucks. It’s simply not loud enough to be of any benefit to me.
I’ve spent the last 1.5 years learning, cobbling and hacking my way towards a better hearing aid than what they sold me.
Thanks to the internet, China and determination I’ve had some decent success. Using a PAM3804 based amplifier module, an electret microphone, lipo usb battery charger, 18650 battery and a surface exciter transducer that I run a wire from my mic’n’amp combo to the transducer I magnet to my head. 3D printed enclosures for everything.
End up with something that looks like a Walkman that I wear on an armband and the only thing that really sticks out as odd is that a wire and a tiny block runs right up to my skull behind my ear.
Another plus is that it works extremely well and use it often. I’d easily toot my own horn and say it’s 10x’s better than what Cochlear sold me.
To be fair, I have perfect hearing in my good ear and my device has no filtering capability what-so-ever so my solution isn’t ideal for a lot of people
But my BOM is now under $20 (thanks to having a pair of 3D printers), so my starting out with never holding a soldering iron to making this work for myself? Pretty stoked.
I also know where my weaknesses are, I’m not an electrical engineer and don’t really wanna be one. I tinker, I do some Arduino based stuff these days, Python scripts, etc. but I lack the skills to do what you guys have done.
Super excited to have found this project and anxiously await to see where it leads.
So I really want to get my hands on one of the Tympan boards! I really want to get my hands on one and start experimenting.