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Considering between phonak Infinio Sphere i90 vs Onicon

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In reply to @Ray6

Most likely. he used VAC+ which will be the default fitting formula for Intent’s for adult.
There is no M or P receiver for Oticon its 85-100 and 105 which needs to be made in
the factory.

Might be a good idea to run , you might not be reaching what is needed on your high frequencies - regardless which aid you buy

In reply to @user246

Thx for your advice!

Yes, I guess she also changed the fitting formula: During the first meeting, she emphasized many times that the sound of Oticon would be very different from Phonak: the sound of Phonak would feel brighter and stronger, while the sound of Oticon would be softer.

During the second meeting, she adjusted the sound of the Oticon to be somewhat similar to the Marvel 50 I was using, but the sound was more “complete/ full”. Since the hearing aid needed to be returned, it was not possible to test it at a different location.

According to your speculation, what formula did she use during the second calibration? I originally thought that my high frequency loss was adequate with the M receiver (the latest tests by both companies showed that my hearing has not changed much in the past few years, so I guess the M receiver is adequate). According to the Phonak / oticon receiver diagram, isn’t the upper limit of the high frequency of the M receiver /100 receiver at 90db?

Edited

In reply to @DaveL

@DaveL said:

Is there a better/best fitting formula for my hearing aids?

The most reliable and proven fitting formulas for speech understanding are 5.0 (adult and pediatric) and .

There is, of course, a start for NAL-NL3, but so far I have not seen evidence that it is demonstrably better than NL2 in normal use cases.

The remaining formulas—manufacturers’ proprietary, such as VAC and —are more for hearing comfort, especially for beginner hearing aids users after a long period of hearing deprivation.

@DaveL, I think in your case better hearing is more dependent not on fitting formula, but on better optimized acoustic coupling, which could provide more possibilities to achieve -based targets.

Domes aren’t as reliable as cShells or traditional earmolds. I speak for myself—currently I wear a P receiver with power domes while waiting for new cShells for Sphere.

Thanks for your kind response.

I had NAL NL2 in and had it replaced with 5.0 adult last visit. I also had molds taken for new c-shells which I shall receive soon. Neville has been so helpful; I was reluctant because my worst hearing experience was a single in the ear hearing aid I had for almost 10 years. It hurt .

Frankly, the DSL 5.0 adult hasn’t been a good experience either. And it’s too quiet the way it has been installed.

I expect to get NL2 installed, as it was better for me.

I’m really happy with the care I’ve received. And Neville’s advice (and patience) and yours too.

DaveL

@DaveL said:

I was reluctant because my worst hearing experience was a single in the ear hearing aid I had for almost 10 years. It hurt .

Yes, I remember that probably 2–3 years ago I strongly suggested an earmold for your hearing loss after I wrote about tips for a mask program.

I am not sure whether a UP receiver would be better, but only could provide an answer in your individual case. It would be better mainly if your ear canals are larger than average, which can make achieving REM target more difficult for P receivers.

I mentioned only the proven fitting formulas, supported by research. I agree that proprietary methods may seem better for individuals, but I am unsure what you mean by “better.”

I read that many people, especially those after long-term hearing deprivation (e.g., in high frequencies), are reluctant to use proven fitting algorithms because of the perceived sharp and tinny sound.

I emphasized that for me, “better” means more speech understanding, I forgot to add that this is my point of view even at the expense of an uncomfortable period of acclimatization to a “tinny” sound.

However, IIRC, Contrast reportedly can ve beneficial for profound hearing losses, but didn’t read much research about that.

In reply to @Bimodal_user

I remember you helping me. My in the ear hearing aid was moulded twice. Squealed when eating first mold. Hurt second time. I couldnt afford ha. I bought one. Cheapest I could find.

Hearing got worse. I qualified for workman’s compensation here.

3 pair of Phonak later.

I have used Large Power Domes which I hated and Large . I don’t have feedback with Large Closed Domes.

Along the way my hearing became worse.

It was Neville’s comments and yours too that convinced me to listen to my practitioner.

He was heavily involved in manufacturing before he qualified and opened a shop.

Thanks for your skill and patience. @Neville too

DaveL Toronto

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