Thanks I tried changing the hearing aid settings and still no luck. I compared it to my fre case and yes on the Nuud it's slightly off but I honestly don't want to touch it now. But I will anyway and report back later.
On another note. After using the Nuud lately the fre does sound muffled
Had that issue also with my first Nuud case - no one could hear me (listened for myself and it was pretty bad). To be fair, I didn't inspect the first case to see whether that foam piece had shifted. Decided to exchange it, and all is well now. I've always preferred and have up until now used only bumper style cases for my iPhones (since the iPhone 4). However, here are my thoughts on the case after a few days...
Very Rugged Construction - I've dropped it once since owning it (from about 4.5 feet) and to my surprise, no scuffs on the case, at least none I could see - albeit this was in the shower, I would imagine if it were on concrete it would be a different story... Nonetheless - still impressed. I've thrown it around on the grass at a local park and the clear backing does scratch/scuff up fairly easily but lightly - you'd really have to angle it into a light reflection to see anything thanks to the slightly gray/smoke coloring of the plastic against the backdrop of the gray/black iPhone 5. A concern of the case I hadn't thought of prior to purchase was the lens (both front and back) and how it may affect photo/video quality - glad to report that it doesn't, at least none that I could discern having taken before/after pictures/videos. I do have one concern, which is the plastic covering over the camera flash - it appears to be rather flimsy, while I'm sure that is not an indicator of durability - it's worth mentioning.
Water Protection - I did test in the sink full of water with a movie playing for 15 min. - no issue there. I've also used it everyday while in the shower with no issue aside from water droplets causing accidental touches on the screen

Also, the one time I did drop it in the shower (which worried me a bit), the case still remained waterproof.
The Infamous Home Button - my first case (which I exchanged for reasons above) had both a very loose home button and was crooked; oddly enough - my usual OCD with cases didn't kick in. If anything, I did test the first case I had with my iPhone 5 in it and submersed in water with no issue... just a cosmetic issue - but I completely understand. My second case is quite the opposite, perfectly lined up home button icon with a fairly rigid feel.
Sound - I understand its very subjective, but I'm OK with the quality of sound with the case on. Two things, the case does "dampen" the sound a bit. Also depending on the song, it can give a slight tinny sound effect akin to a blown speaker - but only at the highest volumes. As for LifeProof's claim to enhancing sound - the case does project the sound forward... I'm no expert - however, it seems louder in quiet rooms and softer in louder environments - I know, odd, but I can't explain it any other way
And lastly - The sound quality of captured video from the rear camera is quite compromised with the case - and can only be explained by the noise-cancelling mic on the back being covered. Front facing camera video captures sound without an issue... Hearing Aid mode doesn't do anything for it either...
And thats all folks...