If you’re a techie, I suggest that you go on the Oticon website and download the technical papers for the OPN and More and Real to read up on them. You should also download the Genie 2 software to learn more about the parameters your HCP set for you. You don’t have to spend money to buy the NoahLink Wireless interface to become DIY, just the free software download alone will let you learn a lot about the programming features/parameters/options so you can have a more intelligent discussion with your HCP next time you visit her. There’s a DIY section in this forum you can explore if you want to learn more about downloading and using the Genie 2 software.
The OPN has a traditional feedback manager. The OPN S, More and Real have the new feedback manager called the Optimizer. It’s a preventive type feedback manager where it would insert a series of quick pulses to stave off any potential energy build-up that can lead to feedback. Many people refer to what they hear from those pulses “warbling” or “fluttering”. It’s not to be confused with the fluttering you may hear on pure tone sounds in the OPN due to the 10 Hz shift in its traditional/older feedback manager as 1 of the 3 feedback strategies (the other 2 being phase change and gain reduction).
You can have your HCP change the Feedback Manager setting in your Real to Low to see if it’d help. If still not helpful, turn it to OFF. If OFF gets rid of it (proving that it’s the culprit), and you now end up with feedback issues (because you just turn OFF the new Feedback Manager), then you can have your audi enable the old Feedback Shield feature (it’s still there available for use if you want) by running the Feedback Analyzer and enable it next time you’re in the office.
I don’t think your HCP should prematurely turn off the noise reduction feature for you just yet. That’s an entirely different thing, and she should only try 1 thing at a time. Maybe she only turned off (or down) the Neural Noise Reduction setting and didn’t even touch the Feedback Manager setting, which would explain why you couldn’t tell if it works in her office until you came out to the real world and learned that it didn’t help. I would leave the Neural Noise Reduction alone and try to adjust the Feedback Manager setting first.
Regarding the other problem with increasing feedback in your car which you never had before with the OPN, that’s most likely because you had the traditional Feedback Shield enabled in your OPN, but it’s not enabled in the Real because the Optimizer Feedback Manager is supposed to replace it, which is a likely source of your warbling. Like I said above, if turning the new Optimizer Feedback Manager to Low removes the warbling, then you’re all set. If not helpful, but turning it OFF altogether helps remove the warbling, then just fall back on the traditional Feedback Shield and have your HCP run the Feedback Analyzer and enable it next time you’re in her office. That’ll put you back squarely just like how you had the feedback setup in your OPN before, using the traditional Feedback Shield instead of the Optimizer. Note that you can also have BOTH of them on, they’re not mutually exclusive. Meaning if LOW on the Optimizer gets rid of the warbling for the most part, but you still experience feedback in your car, then turn on the Feedback Shield as well, and operate both Feedback features in parallel.
By the way, with your kind of hearing loss, you can probably stick with a partially open dome (like the Bass dome with a single or double vent) and manage your feedback issues with the 2 feedback features available on the Real. I don’t think going to closed domes (like a power dome or custom mold) is a must for your type of hearing loss as long as the 2 feedback features can help you manage feedback OK.
