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Oticon More 1 Low Hiss in Quiet

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In reply to @padraighgriffin

I don’t think there’s be a big difference between 65 receivers and 85 dB receivers in terms of harmonic distortion that would cause a noticeable floor noise. It’d be the same mic regardless of which receiver size you choose, so if it’s a mic noise, then you’d hear it on any receiver.

@tenkan and I keep calling it floor noise, but you keep calling it hiss. I wonder if this is not the lower frequency floor noise that we’re thinking about, but some kind of higher frequency hissing that you’re hearing. If that’s the case, then it’d be something else.

It may very well be that your low frequency hearing is so normal that you can detect a floor noise. But like I said, digital have excellent compares to analog HAs when it comes to floor noise so I still think it’s something else, otherwise, other folks with similar hearing loss to yours would have complained already.

You have the advantage of being able to programming. So I’d recommend to keep playing around to see which settings may help more than others. Start in the MoreSound Intelligence menu and play around with the various Neural Noise Suppression settings, and changing the Sound Enhancer values, the Virtual Outer Ear settings, etc. Also maybe just try the other standard fitting rationales just to see if the hiss is still there or not with non-VAC+ rationales.

It’d be great to be able to figure out what frequency or frequency range the hiss is at. If it’s across the frequency range, or if it’s specific to a much narrower range. You can experiment with this by changing the Soft gain localized frequency areas only, maybe starting from low frequencies to mid then to high, just to see if any of the 3 sections would show more pronounced hiss than others or not. Of course you should take note of what the gains were before you make a change so you can restore them back to the normal values later on.

I also assume that you don’t have the Speech Rescue feature turned on at all. With your type of hearing loss, you don’t need Speech Rescue.

Edited

Tinkering here as we speak. Just a quick question. How do I change to non VAC fitting rationales?

Also, the only thing in moresound that helps is when I choose ‘full directional’ which is not an option as I want the open experience of the Oticon More ’s. It is why I chose them in the first place.

In the Program Manager, the General option in each of your program is a pull-down menu where you can select between the various fitting rationales.

It is very weird that your choosing Full Directional in MoreSound Intelligence helps reduce the hissing (I won’t use the word floor noise anymore because it’s starting to sound like real hissing -> maybe higher frequency hissing and not low frequency floor noise) while Neural Automatic or Fixed Omni increase the hissing. To get the most out of the More, most people want their P1 default program to be in Neural Automatic. I guess you should stick with Neural Automatic then vary the Neural Noise Suppression values, as well as the different Sound Enhancer selections, the various Virtual Outer Ear selections, as well as the various configurations of the Simple vs Difficult Environment to see which combination or which of these parameters seem to help reduce the hissing. It’s all debugging work so it can be tedious, but it’s a great way to experiment and understand how these parameters sound to you anyway.

As a person, it may be helpful to take your phone to a noisy place and record this environment so you can have something to play back on a home sound system to simulate a noisy place for your various experiments.

Thanks. No luck with the various programs as they seemed to increase the background hiss. General VAC was the best. I have domes coming tomorrow hopefully so will try those. I have tried so many different settings and adjustments.

So far the biggest effect is from changing the Moresound VC down, with each step up or down it increases or reduces the hissing/static noise.

I’m not optimistic that the bass dome with double vent would help if the hissing comes from the . If anything, it may be more pronounced because the bass dome will be less leaky than the open dome so the hiss may be more noticeable in a more enclosed fitting.

But you never know. Maybe when Genie 2 re-prescribes to the bass dome, that particular prescription may lessen up the amplification for the bass dome (like how you reduce the gain) and thereby reduces the hiss. If anything, you may get more low frequency amplification for streaming (because the bass dome leaks it out less) and therefore may like the bass dome better for streaming music. I think the 2 vents in the bass dome should be sufficient to let enough of the natural lows in through the 2 vents for you to hear OK. The only thing is whether you find the increase occlusion when chewing acceptable to you or not compared to the open dome.

Unfortunately everyone thing I try is not working at all. There is a definite hiss/static sound kind of like extremely distant running water. The more amplification i get from the ’s the more the static noise. The only solution is to reduce the VC Moresound and it fades away but not to nothing.

I am extremely frustrated to be honest. I got these aids primarily to helps me with Tinnitus but it is like they help a lot, but the static hiss is like Tinnitus in that it is persistent and annoying. I should not have to habituate to a Tinnitus like noise from Premium Hearing Aids should I??

All I have left to try is larger domes for the openfit as the 8mm still feel a bit loose. Plus the double vented bass domes. I also have ordered a 60 receiver speaker cable.

It really shouldn’t be this hard should it?? Or am I just unlucky?

@Raudrive said:

ou program the aids based on institute audiogram?
What acoustics did you use for the institute testing

Yes I have a few profiles where I have done an in situ and programmed the aids based on this. I used the openbass acoustics.

I also have a pair of new Bose Soundcontrol ’s and they have zero hiss. I bought them to test if they helped my hearing and Tinnitus and as they helped I decided to buy the supposed top of the range premium to get more features and better performance.

Whatever tweak I make the hiss is still there. I would love to get this sorted.

Edited

Hiss is both sides unfortunately. Every time is disconnects in Genie, it goes nice and silent and reconnects then hiss comes in strong. The only thing that works to reduce it is turning the moresound booster down but then it is not giving me the amplification I need so what is the point of expensive ’s. I am uploading some of my setting from one of the profiles i created. Welcome any suggestions. Thanks

moresound main screen gain sound controls personalisation

@padraighgriffin said:

Every time is disconnects in Genie, it goes nice and silent and reconnects then hiss comes in strong.

So is the hiss only there when you connect to Genie? I’m a bit confused by your post.

Highly unlikely but have you though that both Aids or receivers might be faulty?

I hope the new receivers help.

@Zebras said:

ely but have you though that both Aids or receivers might be faulty?

I hope the new receivers help.

Sorry for confusion. No the hiss is constant unfortunately. I would be surprised if the aids are faulty. I bought them off Ebay from a well known Korean seller with excellent feedback and communication.

@padraighgriffin said:

I would be surprised if the aids are faulty. I bought them off Ebay from a well known Korean seller with excellent feedback and communication.

Altho he’s a good eBay person. Sometimes hearing aids are faulty when new.

I’m wearing my UK NHS issue Aids at the moment. Altho both were sealed when they were opened in front of me, one Aid has always drained batteries really really quick so I’m waiting for a replacement in the post at the moment. The hospital have said, sometimes they can be faulty from the very beginning.

This is unlikely tho because it’s both Aids.

@padraighgriffin said:

. No the hiss is constant unfortunately. I would be surprised if the aids are faulty. I bought them off Ebay from a well known Korean seller with excellent feedback and communication.

Just to be clear, I do an situ audiometry in Genie and when it ask to prescribe settings it goes straight to the low hiss that I can hear clearly. As I raise the gain to the target, it increases in volume. I am lost.

In reply to @padraighgriffin

I am the furthest thing from an expert about your aids.

The first thing I would try is lowering the brightness control settings in sound.

Then lower the the environment controls from difficult to moderate or simple.

In Easy Environment, virtual outer ear, I would lower the setting from aware to balanced.

I would not have used 85 receivers with your hearing loss.

If you try these things do one thing at a time please. Verify and try something else.

Good luck

I have tried all of these and it has reduced the hiss a bit but I seem to have no amplification and my gain line is far off target in high frequencies. See attached. I have ordered 60DB receivers. Please God they will work.

suggestions ed photo.

@padraighgriffin said:

I have tried all of these and it has reduced the hiss a bit but I seem to have no amplification and my gain line is far off target in high frequencies.

Have you noted gain changes when you adjusted these settings?
Try lowering the settings as mentioned. Then bump your soft gains up a touch, all the way across.

In reply to @padraighgriffin

Couple of things here, your using open domes but this fitting is set up for double bass, so can’t see this helping until you actually change the domes to double bass, also you do run the feedback test (analyser) again everytime you make these changes?

One other thing, the 60dB receivers will be a noticeable difference, they will sound a lot “brighter” then the 85dB you are currently working with, I think you’ll notice the circuit noise (floor noise) more with the 60dB as it’s hard to imagine that both 85dB receivers are at fault.

Is it possible, for your partner or for someone else to see if they can also hear this annoying “hissing sound”
otherwise you could be chasing shadows.

In reply to @padraighgriffin

@padraighgriffin said:

Just to be clear, I do an situ audiometry in Genie

Just for s…ts and giggles, have you tried creating a client using your actual , and not in-situ?
Do personalization as you have it pictured
Make sure you set up acoustics to whichever domes you’re using
Set you sound controls more to fuller & comfort .
More Sound Intelligence set the environment slider to moderate.
Virtual outer ear balanced
NNS easy 4dB
NNS difficult 10dB

Does it help?

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