Your voice is not terrible, I enjoyed it quit a lot. By the way kudos to you, I'm Italian and that was interesting for me too! I'd love to have it in other languages too. Oh, and also I love the website vibes! The right mix between 2000 websites and contemporary elegance!
I'd love to have it in languages that I don't speak with a deep poetry history, like Japanese, Indian, Persian, languages from Africa... but I guess the biggest problem there is not the infrastructure, is knowing the language.
But also Latin would be interesting, Latin has tons of great poems, even funny ones (I still remember Marziale :D )
Dude, yes! I was reading this and thinking "if only there was one for Latin..."!
There is a big Latin & Ancient Greek server on Discord, and the people over there would love your project for sure. Lots of them being Italians, it would be even better. Since you're wondering about the help of experts, there would be no better place to go to than there.
I dream of a unified platform for the classics - translation, archive of books, and so on... equidem adjuvabo si quidam tamen capiat umquam consilium. Vale!
My voice is terrible, so I'll definitely follow your latter point.
I hadn't even thought about playback speed, especially since those are all pretty quick, but I'll think about it for sure.