I was about to make the same comment: my brain works the same way. A one-on-one conversation with low ambient noise, no problem. A bunch of loud conversations

I was about to make the same comment: my brain works the same way. A one-on-one conversation with low ambient noise, no problem. A bunch of loud conversations all around me? Forget it, I can't understand anything. I don't see why an aid for hearing-impaired people needs to handle this at all.