Hey, @AmpBenzScientist .
Could AfterShokz headphones be paired together with ambient mike to try to produce the hearing aid system?
Another setup id like to try is typing a text message processing it with tts and streaming over bluetooth to aftershokz. My contribution to telepathy or quiet talk projects.
@PawelK Yes, a system could be developed around the technology. Ideally one would want at least two microphones to sample and send to a capable MCU. This would allow for better filtering and more features. There would be a delay but it would be minimal. Two inputs with a simple algorithm for the average of the two signals. This could be sent to the output for a delay that would be the sum of the distance traveled + Cycles + the reaction time of the mechanism. It would likely be a few milliseconds. The M5STICK would be capable of this and the wireless connection.
What would be optimal location of the microphones? How mic2mcu2headphones could be interconnected?
Hmm I nead to learn more on m5stick. Just looking it up.
@PawelK The microphones would ideally be near the mouth and one farther from the mouth. This would allow for a better filtering of ambient noise near the main microphone. The rationale is that each channel would have a stronger audio section with a smaller section. The two different channels would contain nearly identical sections but they would opposite in magnitude.
The main microphone will be the primary sensor and the secondary microphone would be for filtering. The wave shapes would be the same. It would just be a simple sample and remove for the audio signal to gain a lot of clarity.
@AmpBenzScientist
Ill try to mock the hw setup and when its ready, ill play with sw for a while.