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There is a feedback elimination process when they tune the hearing aid using the computer. It tries to work out what feedback is escaping, to cancel it.  But wearing it, sitting still in the audiology room is different to real life when there is more movement creating further feedback. Hence feedback still being an issue.  I'm guessing the processor in the hearing aid itself doesn't monitor for feedback, there's only so much you can fit into a hearing aid before it gets too big.

Perhaps headphones take away the filtering abilities because you lose the ability to judge direction and distance?

by In Wales (inwales aaat eurotrib.com) on Fri Aug 31st, 2007 at 02:33:47 AM EST
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