@arnags2000 I don’t think he is wearing HA.
Here is my understanding, someone on here can correct me.
The image below is my brother’s left ear audiogram with pictograms added to it.
Any sound above the blue line is difficult/impossible for him to hear, so the HA boosts/amplify those sounds to the level where he can hear them (blue line is his hearing level).
Any sounds below the blue line, he can hear them just fine!
So what does this mean?
My understanding is, the lower the blue/red line, the powerful the HA needs to be so they can amplify the sounds above the lines.
Here is some reading:
In the end, having a good understanding of this topic, gives you guidelines on what to do and what to expect when going to a hearing care professional.
To answer your questions on the main post:
- 10db not sure, but they will set up your HA to the optimum formula that suits you.
- Again, I think this is related to the above (10db), but not sure
- HA aren’t perfect and they still struggle in noisy environment, when it comes to face to face in a quiet environment I would think they do a decent job.
My advice is, if you have a Costco near you, you could go and check their hearing center, they will advise you on what you really need.
One last item, Normal or not normal, the main thing is you who has to deal with x situations, and to help you, you need to be able to hear as much as you can with the best HA you can afford. This comes down to what you want vs what you need.