Ah, so since I sent the last message I updated the mod and simplified it, all you need to do with the new version is type your text, optionally modify the blueprint options, and then click the blueprint button and it should generate the speech as a blueprint and place it in your cursor (activate the constant combinator to start the speech, but feel free to modify and link it to whatever circuit stuff you like).
I had the simplifying update lined up for a while but didn't have the time (or motivation) to finish it, but your message gave me a gentle kick up the butt lol
I hope this solves the issue