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  • Pallavaram + 91 99400 68405, Velachery + 91 99622 67333, Purasawalkam + 91 91767 19494 , Porur +91-75500 28064, W-Tambaram +91-91767 78660, T Nagar +91-98409 77288, Anna Nagar West +91-78457 45787, Arumanai +91-98402 39560, Trichy +91-72004 50000, Nagercoil +91-98402 39560, Blr-Lingarajapuram +91-79755 70087, Bh-Patna +91-91620 79477, Blr-H.S.R Layout +91-98809 15931



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Feedback – The high–pitched whistling sound that can be emitted by a hearing aid when the hearing aid’s microphone picks up its own output, thus re–amplifying itself.

Feedback Suppressor – Technology present in some newer hearing aids that is designed to limit the amount of feedback experienced by hearing aid users. Low–end hearing aids lower gain to reduce feedback, while more advanced hearing aids alter the phase of the signal to control feedback.

Fistula – An abnormal hole or rupture in the window that connects the middle ear cavity and the cochlea, allowing the leakage of inner ear fluid (perilymph) into the middle ear and often resulting in hearing loss and dizziness.

Flat Audiogram – A description of the graph of an individual’s hearing thresholds in which the degree of loss present is similar or equal for low, mid and high frequencies.

Footplate – portion of the stapes bone that is attached to the two crura and that sits in the oval window.

Frequency – Cycles per second. The number of vibrations occurring during a second, resulting in the perceived “pitch” of a sound.

Filed In: Hearing Glossary