Comment Re: Cable Issues? (Score 1) 143
There is plenty of trash on the internet.
They are custom-fitted, high precision medical devices that as such are also subjected to intense regulatory and lawsuit considerations. If you want to stick a cone of paper in your ear and save a few bucks go ahead, but you'll look like a moron. There is also a lot of testing that is involved with selecting an appropriate hearing assist device.
None of those factors prevent them from being open source.
Top Ten Things Overheard At The ANSI C Draft Committee Meetings: (4) How many times do we have to tell you, "No prior art!"