Hi
My daughter at 10 years old has some challenges in hearing a message from t he teacher in a noise environment (could just be that she just don't want t o listen)
Anyway, we found a clinic doing binaural pure tone audiometry test (BPTA) a nd optical tests, since the suspicion is that she has a hearing disorder th at muddles up sound in her head
So we paid 300 USD and they conducted a test:
The hearing test is on page 1 and is a binaural pure tone audiometry test:
Afterwards we had a consultation in which the responsible person told us th at the speech recognition was caused by differences in the amplitude betwee n the left and right ear, which caused interference. But AFAIK only phase d ifference can create interference
Also, they told us that the headphones that we bought that should be used f or some audio treatment (how that works is beyond me), should be a specific model due to the length of the cable to the headphones (sigh)
I am a little skeptical about the test, if they really report the right num bers and since the other baloney I would like to reproduce the test myself
I have good headphones in my home lab, good signal generator, so I could tr y to reproduce the test
I have a suspecion that they just put the dots to show there is a problem, even though there might not be (maybe I am overly skeptical)
Anyone ever done this, and heard about this BPTA test?
Thanks
Klaus