Expert Answers from Hearing Healthcare Providers

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Why do hearing aids whistle?

Tom goyne aud

Thomas Goyne, AuD

Doctor of Audiology in Wayne

04 May 2016 - 1143 Views

Similar to a public address system, a hearing aid can hum, whistle, or ring when amplified sound comes out of the hearing aid’s loudspeaker and is picked up by the microphone and re-amplified, over and over again. This creates what’s called an acoustic feedback loop.Possible causes of feedback include:Improper insertion into the user’s ear.Improper physical fit of the hearing aid.Improper calibration of the hearing aid.If you are having any of these issues, the best solution is to visit a professional who is capable of adjusting the devices or... Read more

Why does my hearing aid beep while I'm chewing food?

Abram pro square

Abram Bailey, AuD

Doctor of Audiology, Hearing Tracker Founder

17 August 2016 - 903 Views

When you chew, you hearing canal actually changes shape. You can test this yourself by placing your pinky finger into your earcanal, then opening and closing your mouth (make sure you take your hearing aid out first). When your earcanal changes shape, this can often lead to amplified sound leaking out of your earcanal around the sides of a custom-molded hearing aid or earmold. When sound leaks out of your ear, some of it will be picked up by the hearing aid microphone, leading to re-amplification of already amplified sound. We call this... Read more

I have severe to profound loss. Hearing aid companies are boasting about advances in feedback cancellation. Is a dome fit an option for me now?


Todd Gibson, AuD

Audiologist in Lexington

06 July 2017 - 755 Views

You might be able to get away with power dome tip.  However, the most appropriate coupling would be a custom power shell that is encased in the receiver wire.   I use them all the time with very good success.  They are comfortable and can come in acrylic or soft materials as well.