I would like to modify my previous slide courses where I have used a TTS external program to create an audio file who Hype will play inside the slide, but modification-update of text is becoming cumbersome.
So I am looking for a way to do TTS directly inside the animation.
I am looking for an excellent result, where is possible to insert markup tag to control the speech (voice, language, rate,…) SSML may be the best target.
I suppose that a js lib/script but be used, some suggestion?
Any one has done some experience, any suggestion will be appreciate