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Guide to Coping with Hearing Aid Feedback Issues

New hearing aid technology suppresses feedback.

Hearing aid feedback is the annoying whistling or squealing sound that happens with some types of hearing aids. Fortunately, new hearing aid technology suppresses feedback and there are ways to reduce or eliminate it. Typically, hearing aid feedback comes from amplification in the higher frequency ranges so some persons may be more susceptible to feedback depending upon their hearing loss and the type of hearing aid they wear. There are three different types; acoustical, mechanical and electronic.

Acoustical feedback is caused when amplified sound produced by the hearing aid speaker is picked up again by the hearing aid microphone which creates a sound loop that just gets louder and more screechy.

Mechanical feedback occurs when physical vibrations are created due to contact between the hearing aid speaker and the hearing aid casing. These vibrations are then transferred through the casing back to the microphone.

Electronic feedback is caused by a malfunction in the devices complex circuitry in the device. This requires the services of a hearing aid technician to fix. Feedback issues do often require a trip back to your hearing professional’s office but it will be well worth it to determine the cause of the feedback.

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