This video shows the demonstration of Text to Speech API on Mozilla Firefox on the Windows operating system.
API has been tested at http://itsyash.github.io/webspeechdemos/.
This has not been shipped in firefox till now, but hopefully you'll find this in the next version.
Each word is highlighted as it is spoken. The section on the right side of the web page shows various callbacks during the speech, such as start-of-the-speech callback, word-level callback and end-of-the-speech.
The functionalities have been shown in the following order:
1) Normal speech synthesis
2) Adjusting the rate and pitch
3) Changing the voice
4) Interrupt, Pause, Resume and Cancel methods
5) Adding the text-to-be-synthesized to the queue, if already some text is being synthesized.
The API (Speech adapter precisely) has been developed as a part of my Google Summer of code project with Mozilla, using the Microsoft Speech API.
You can get more information about my project here : http://yesitsyash.blogspot.in
This screencast has been made using ffmpeg, following this blog post : http://commandlinewani.blogspot.in/20....