I need to test out a feedback cancellation algorithm for a hearing aid firmware. When it comes to generating feedback for testing hearing aids, I think there is no other option but putting the hearing aid inside a real ear. So I am looking for an alternative, but I cannot find something that seems right and within my budget. I can find cheap silicone ears and microphones, but I cannot find any setups that combine the two. A kemar head and torso simulator is probably the industrial grade version of what I am looking for, but it is too expensive and I probably don't need all it's features for my current requirements. I need a fake ear that (adequately enough) simulates putting a hearing aid on a real ear, with microphone attached to it that will allow me to get the audio reading, and within a reasonable budget.
Does anybody have any suggestions on what I can use? Or any suggestions or personal experiences to share, on making a custom setup?
Does anybody have any suggestions on what I can use? Or any suggestions or personal experiences to share, on making a custom setup?