Could anyone please advise why my new on-trial hearing aid, despite repeated adjustments by my audiologist using the manufacturer’s fitting software and manual changes, still delivers sound from my various good quality radios and new TV that is rasping and too distorted at the high frequency end for comfort. (I listen to the radio a lot). I have experience of using digital aids when my hearing loss was confined to the higher frequencies - the low frequency loss is fairly recent(virus).
The aid is a 15 channel Widex m-4-m with a partly open claw mould and a wide tube. My one ‘good’ ear (the other is dead from surgery years ago) shows a tent-shaped : 35-25-20-15-15-35-55-55 at 250-500-750-1k-1.5k-2k-3k-4k. However, listening to a radio with a simple small earpiece gives pleasing and pure sound. In everyday social settings, conversational speech with the new aid, whilst over bright, is clear and satisfactory.
The new low frequency loss occurred 18 months ago (virus): the high frequency loss was
noticed 5 years ago (age) and was then successfully corrected with an thin tube aid. I don’t have Menieres.
Could the distortion be due to ‘channel smearing’ or use of an aid with too many channels? Any views would be gratefully received.
Thank you
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