You can POST to https://mumble.stream/speak for a raw waveform.

Here's a request:

curl 'https://mumble.stream/speak' --compressed -H 'Referer: https://vo.codes/' -H 'Content-Type: application/json' -H 'Origin: https://vo.codes' -H 'Connection: keep-alive' --data-raw '{"text":"testing 12345","speaker":"david-attenborough"}' --output output.wav

The other speaker values:

http://mumble.stream/speakers

There’s a text area and a button to say what you typed.

Surely you can enable or use a browser with JavaScript when you choose to?

If you don't have javascript you see only "This page requires Javascript", when I would hope, even if the thing requires javascript to operate, I could at least find out if it is worth switching to another machine with X11 and firing up firefox.

Why don't you just turn on JavaScript?

I use links. No javascript.