[superasn]

I made this site to do exactly that: https://www.speakreader.com

I've always found it a bit hard to keep focused while reading long text and books. So after trying a lot of things I noticed that this method works really well for me and I was able read almost 7 books in a month with it. Though for me it only works when I set the speed to at least 2.5x normal otherwise I get bored. Also only non-fiction. It's 100% free because I made this only for myself, but maybe try it and see if it works for you too!

[niceairport]

It doesn't seem to work when I paste text. After pasting text into the modal and submitting it prompts me to enter Wavenet API key.

[superasn]

Yes that is required to make the Google's text to speech work. There are instructions under the box on how to obtain it. I've also linked to a YouTube demo video (not mine) for getting the same in there too.