Oticon Opn S “Feedback”

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gljeffery

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I think this has been mentioned before but I cannot find it so I will throw it out anew.
Although I do not get feedback using closed grip tips, I get an intermittent very low level “squeal” which sounds just like feedback squeal but much quieter. It happens in any environment and occurs every few minutes but only lasts for maybe one second. It only occurs in my left ear which is the one with the slightly better hearing.
I guess this is related to the feedback management process but why always in the left ear and so frequently.
Any pointers gratefully accepted.
 
¯\_(ツ)_/¯ Show us your Audiogram. You can see my Audiogram (when Logged-in) linked in my Signature below.
 
gljeffery said:
Although I do not get feedback using closed grip tips
Click to expand...
Were your Oticon Opn S hearing aids originally/always programmed with "closed grip tips specified" for the Acoustics settings in the fitting software?

Or perhaps, they were initially programmed for some other type of Acoustics, and then later the external closed grip tips were replaced without re-programming the hearing aids to specify closed grip tips Acoustics settings in the fitting software?

In other words, do your physical external closed grip tips match your internal Acoustics settings in the fitting software?

This marketing description for → Oticon Open Sound Optimizer may explain why it doesn't last very long.
 
She (my Wife) uses Phonak Power Smokey Domes on her Oticon hearing aids (Opn and Real models). They have a very soft texture that she likes.
shopping
 
I have always used the closed grip tips with the Opn S. The “Acoustics“ section in Genie 2 has closed grip tips.
I am going to try disabling the “dynamic” feedback control in the “automatics” section of Genie and then run the feedback control from the “fit” section. This may reduce the highs too much for me but it may help in diagnosing the issue.
 
The “static” feedback test reduced the highs way too much. I did some tinkering and in the Speech Rescue section I unchecked “keep the high frequencies” and pushed the speech rescue slider one stop to the left.
This appears to have done the trick but I will wait and see.
 
HMm; Please read a DIY School Hearing Aids (v2.2) PDF file named (How Hearing Aid Gain Fits Your Loss) to get an understanding about compression before reading my non-professional opinion below about your setup:

Seems to me that the loss in your left ear is not well suited for using "Speech Rescue" because;
  1. The left-ear loss seems capable of being handled by compression alone, and
  2. Left-ear Speech Rescue would be of minimal benefit because the slope is not steep. In other words I don't think you need speech rescue for your left ear hearing loss.
 
Disabling speech rescue for my left ear has done the trick. Absolutely no chirps or beeps now.
One more question:- Do you think the 85db receiver is OK for my right ear or would you recommend going to a 100db. I just wonder if using speech rescue for that ear keeps things within range of the 85db receiver - or not.
Many thanks for your help.
 
gljeffery said:
Do you think the 85db receiver is OK for my right ear or would you recommend going to a 100db. I just wonder if using speech rescue for that ear keeps things within range of the 85db receiver - or not.
Click to expand...
Generally, your audiogram should fit the shaded area of this → Technical data sheet for the 85 receiver. And it doesn't fit for your high frequencies.

I can't say with any confidence what to do about that profound loss in the high frequencies. Have you tried speech rescue, only on your right ear? It seems to me that speech rescue was designed to work with profound loss in the high frequencies that can be moved to lower frequencies where you don't have a profound loss.
 
I don’t perceive any issues with the 85db receiver and speech rescue enabled for my right ear so I will stick with that.
Many thanks for all your help.
 
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