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In-Situ with Resound Nexia/Beltone Serene/Jabra Pro 20

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With Phonak and widex, the in situ is done while wearing the domes you’ll be using. with Beltone Serene 17s (and I assume the other GN models that are identical) the software asks you to do the in situ with power domes, which, to me, removes the accounting of the ear canal shape and resonance on the prescription delivery to the eardrum. I have been seeing, and reading, that short of (about which there’s been a lot of debate, and which I don’t have access to anyway), in situ can be a great way to get more accurate target results, as compared to an alone. However, with wearing power domes for the in situ and then changing back to vented, open etc afterwards, that would seemingly remove any advantage - basically just being a different audiogram.

Thoughts? Could I simply ignore the software request to wear power domes and do it with my preferred domes? Any reason this would skew things?

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When you take an audogram you use headphones or plugs, so this is just to try and get as accurate it’s possible, so in situ is doing something similar, so power domes and then change the acoustics to open in the fitting, target will adjust accordingly.

In reply to @tenkan

Really good point - as long as Beltone Solus Max does, in fact, adjust targets when I switch the domes to (in my case) closed vs The power domes worn during the in situ. But this makes perfect sense - the regular AG with tight fitting foam inserts translated to actually wearing the , must be built into the Solux Max software for that to work too. I wonder if an in-situ is actually more “accurate” doing new (medrx), since I have access to doing both at any time (I’m an in training).

In reply to @GrayGhost

I have the Resound Nexia 9 (Beltone Serene 17) and the same two pairs of Phonaks you have. I know Target software doesn’t care what domes you’re wearing during an in-situ. Good to know you use the same domes you typically wear, not necessarily the power domes that Resounds in particular requests. Curious what your experience is of the phonaks vs each other, vs the resounds. Did you fit using proprietary fit formulas in all three cases? Strange that the I’m aware of at Beltone don’t seem to use in-situ.

Edited

Yes, as a (and musician) and now apprentice, I’m well into the process, but personally I am personally still intrigued by the in-situ’s potential to allow for ear canal shape and properties to be more attuned to the wearer’s needs, like an “light” in the absence of actual REM equipment. Surely an in-situ isn’t meant to replace an , but rather to take into account the ear’ acoustic properties, which an audiogram doesn’t do, to better deliver targets at the eardrum. Am i way off with this notion?

I think you are right. In situ has the potential to allow good final tweaking and is preferable to a normal for that purpose.

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