How to include text to speech functionality in my code?

If I have an HTML and JS page, and I want to add text to speech or even speech to text to it what is the best way? I already 开发者_运维百科have code for speech to text in C# but am not sure how to link them together!

I saw a text-to-speech google chrome extension. How can I include it in my code?

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you can use SAPI for converting text to speech ...