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Unitron Hearing releases e-version of their pamphlet on CONVERSA with ClearCall with real time feedback cancellation

Unitron Hearing releases e-version of their pamphlet on CONVERSA with ClearCall with real time feedback cancellation.


Executive Summary

Ask hearing aid wearers about the most embarrassing experience they can recall with their instruments and they will invariably escribe an event involving acoustic feedback. A squealing hearing aid immediately directs veryones attention to its owner. The scillations responsible for the squeal can result from a hug, a hat, a telephone or a hand placed close to the ear. Even opening ones jaw to yawn can initiate an uncomfortable screech. Several methods, such as notch filtering1,2 and phase cancelling,3-5 may control acoustic feedback but are not completely effective at eliminating this nuisance. Realtime feedback cancellation is a more effective approach that suppresses scillations rapidly to adapt to the dynamics of a rapidly changing feedback pathway.

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