I'd also suggest maybe adding the channel names (like the comment you posted here) to the app itself (although i think it's cool when it's unnamed and you get the old-school feeling of channels just being numbers).
Also, I'd love to have permalinks for the channels. Not for the individual videos themselves, but just a link that when sharing would bring somebody else to the same channel you're watching right now.
Another thing, although probably outside your control, is that I use a Firefox extension called "SoundFixer" that I use to force the youtube audio to mono (since a lot of channels are annoying to me using headphones, they pan the audio sources too hard left/right and it's super distracting), but it doesn't seem to work on this website, probably because of the way they're embedded. I don't know if this can be changed somehow, or have a mode to force mono audio (which would be also oldschool like old TVs with one speaker only!). It's probably too niche and hard to do though.
Also I don't seem to find any volume control except mute?
I find this interesting. Are you oversensitive? I've never even considered that this could be an issue. Do you experience the same problem with other things like music and games?
For me, it's one of the worst audio quality issues a video can have.
If you're deaf in one ear, your ability to hear and understand speech in particular goes down a lot, even if someone is talking on your good side. Put that person in a noisy crowd and it's game over.
That's when you discover you can lip read to a certain degree. There is way more to it than that. Speech is only one of the sets of cues we use when discoursing. Hand gestures, body posture, facial expressions and more are all involved too.
I'm somewhat deaf in both ears, worse in one and always have been. I have had tinnitus since birth. My deafness does not affect all frequencies equally. Thankfully its mostly the high frequencies that have gone a bit dark and the tinnitus may be largely to blame.
Anyway, your senses are all linked up and your brain is rather good at making connections to try and make up for deficiencies in some areas by co-opting other bits. I have minor lip reading skills to augment my hearing. I can't help it! I also swivel somewhat to try and deploy my better ear as the situation allows. One must try and maintain decorum and not look too weird 8)
"If you're deaf in one ear, your ability to hear and understand speech in particular goes down a lot, even if someone is talking on your good side. Put that person in a noisy crowd and it's game over."
This sounds like personal experience. I don't know how old you are but give it time ...