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In situ testing and follow up action

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I have connected my UK NHS Engage Oticon (thaks to the help given here) and have been doing a quick trawl through the functions available within Genie. One of the more interesting functions is the ability to do in situ testing.

After running this test on both ears, I find that low frequencies fall up to 35db below the audiometry curve (which has been done several times by different audios so should be confirmed) The curves on both ears converge at about 2Khz

What should I learn from this test? I have semi open bass domes on the thin wire . Should I look for alternative domes or raise the gain of low frequencies? I think I can do a refit using the in situ curve. Fortunately I am playing with my back up aids so can do some experiments if the folks on this forum can guide me.

Thanks, all

tom

When I do the in situ test with my Step Mum, I make her wear power domes. It gives a more accurate response.

I’m a newbie at this and probably don’t understand. I thought the idea of in situ was to measure the actual and perceived effect of the gain as delivered, All quite logical except that with open domes low frequency sound also gets into the ear around the domes so it understates the wearer’s perception of these low sounds.
I think that if you use domes which are not what the user normally hears, you are not going to get realistic results (even though they look better)
Please explain where I am going wrong
thanks
tom

Thinking further, if you could run a test while the user is wearing the aids, with the sound coming externally (in a closed cubicle for example) would that be a better test?
Incidentally I have never seen the logic of , although it measures the physical sound delivered, it does not measure the user’s perception
tom

In reply to @tomffoolery

@tomffoolery said:

I thought the idea of in situ was to measure the actual and perceived effect of the HA gain as delivered

You are right and I don’t fully understand it all but I gave a hearing test to my Dad with my step mum hearing aids with open domes and it gave my Dad a low frequency loss of 35 but my Dad has excellent hearing in all ranges. He hears very well without any hearing help.

That’s when I realised it’s doesn’t give a true example of one’s .

You could add the new in situ test to your Aids and find out if it helps or is too loud?

In reply to @tomffoolery

That is exactly what I have been saying. But until I get started on my journey I will have to rely on what I am reading on the forum from folks who are clued up on all of this :slight_smile:

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