Speech synthesis.

So I managed to find several answers to this question but none of them are actually helping me.

I want to find out how to turn on the speech synthesis feature so that I can practice playing blindfold. However, it does not appear to be in

(username) -> sound -> speech,

as many people in other posts have pointed out (and as I have seen on youtube videos). That option is missing for me. I have tried chromium, firefox and qutebrowser on manjaro. I have a _"robot"_ option but that does not actually read out the moves.

Just to clarify. I know I can set blindfold mode, I know how to enter coordinate moves, but the speech synthesis option just isn't appearing. I assume it must have something to do with the browser, but chromium and firefox don't work either so I am a bit stumped. Any directions will be very helpful.

Thank you.

I am very sorry, i cannot help u here. fYou could try chess.com blindfold chess though. It is the only other option i can think of

Maybe it's linux, having the same problem on kubuntu

@tatchaka, try again, I have the sound effect for speech I dont use it but, username, sound then speech is all the way at the bottom. You may have to scroll down to reach it, try again

on firefox in linux??

Okay, I've solved this:

tl;dr: run "sudo apt install speech-dispatcher espeak" and restart firefox.

Explanation and solution for other distros:

Lichess uses the speech synthesis API from the browser to read the moves, which in chrome comes with the browser, but firefox uses the speech synthesis from the system, and in most linux distributions there's none installed by default, for this you should intall speech-dispatcher wich is apparently a necessary abstraction layer and then a speech synthesiser such as espeak (note: espeak is not very good, but it's the first one I came across and it just worked).
To install in Manjaro I think it would be "sudo pacman -S speech-dispatcher espeak"
Remember to restart firefox.
You can test speech synthesis in http://mdn.github.io/web-speech-api/speak-easy-synthesis/ , if the combobox at the bottom is empty then you don't have any speech synthesis voices for using.

Sources:
bbs.archlinux.org/viewtopic.php?pid=1656937#p1656937
www.reddit.com/r/firefox/comments/6z8gme/speech_synthesis_engine_support_for_firefox_in/