Where, exactly? In Settings I see nothing about WhistleBlock or feedback.
Global settings I believe. At the bottom of the page.
That’s what I meant by “Settings.”
Don’t run the feedback test and turn off whistleblock, now that’s going to give you pretty"liberated" gain, don’t forget you can change the MPO as well if all you want is more gain, set up initially in a new client with moulds (no vent, closed) remember Target’s algorithm only allows for so many changes, so your experiments may not pan out the way you want them to.
@tenkan Could you elaborate on this? It seems to imply that every once in a while you should get a new profile? Or would changing the acoustics settings be enough?
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What I mean is for every action there is a reaction, so changing one thing (say 80dB at 3kHz automatically changes in the 65dB and 50dB ) so sometimes you simply can’t get the desired result you actually want because of Target’s “algorithm”
No you don’t have to change to a “new profile” I only suggested this for @brec to do for his “experiments”
and yes you can just change the acoustics or even the fitting formula to try and get the desired results, but with a few different clients set up you can keep the different settings and change between them to see which works best when “experimenting”
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I have been fooling with Target for a couple of years now. I agree that it does some things I don’t understand. The wiggle in gain curves seems to be an artifact. I have tried, but never was able to fully get rid of it. For some reason, my current G65 gain is higher than my G50 gain. Go figure. It has, if I remember correctly, either 6, 10, or 18 gain handles, or frequency bands that can be adjusted. If I change the gain of one band, Target changes the gains of the two adjacent ones. It does this regardless of how many gain handles I select. It has some other odd things it seems to want to have a certain way, and not let me change. I would have to have the program up and running to remember them, and I am on a different PC right now. I imagine professionals who use it every day learn to ignore the odd behavior. Actually, I have never had a professional seem to want to talk about the programming software in any detail at all. Even when I told them that I have it and use it.
I found a way.
In reviewing another topic I just noticed that in a @Sierra reply in which he posted a diagram of a DSL v5 fitting against my audiogram, the gains were not limited by the estimated feedback threshold. I hadn’t been able to achieve that with my experiments using the two Phonak forumulas. Aha - only the Phonak formulas honor the estimated feedback threshold! DSL and the NALs do not. However, all the formulas honor measured feedback, i.e., the result of a Feedback and real ear test.
A feedback suppression mechanism like Phonak’s WhistleBlock, which can be separately enabled, with a fitter-selected strength, on a per-program basis, can’t suppress feedback “noise” without also suppressing the desired signal, right?
Yes that’s one of the problems that all these so called feedback algorithms have, so contrary to what is spinning out from the manufacturers, hearing aids are still dumb,they can’t think for themselves like say AI.
I’m still not sure what exactly you are trying to achieve, just more gain without feedback or something else?
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I’m trying to achieve more gain without feedback, hoping that will yield increased speech intelligibility. I’m also trying to understand what Target is doing.
Getting the proper size hearing aids (gain) for your hearing loss is how you get best speech intelligibility. Proper acoustics will eliminate feedback.
These are fundamental hearing aid procedures.
Have you got your aids yet?
I found if you performed the feedback test and then switched off the WhistleBlock via the feedback and real ear test section. The lines are higher and the dotted line disappears.
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I’m expecting delivery of M90-312s around Jan. 6-8.
But if you do the test, then it would be a solid rather than dotted line, wouldn’t it? Regardless, I’ll try this sequence.
Is the goal to have your gain match the target gain?
Here is mine from my visit yesterday to Audiologist.
Do you know what % prescription your aids are at?
Yes, you are at 100% prescription gain.
When I had the feedback test massively reduce the gain in the high freqs like this, I had to have a more of a closed fit on my dome even tho the software was recommending an open dome.
(I don’t wear an aid in my right anymore so don’t have this issue anymore.)
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