I want to make use of W3C Web Speech API, which already have a demo at https://www.google.com/intl/en/chrome/demos/speech.html.
I want to enhance it as a continuous speech recognition service and hopefully it can be run from a local html file on an android phone which can have features added to its currently demo. Now, I find that the local file cannot access the microphone when running in Chrome or android webview.
I know little how to setup this API. For example, what files I need to install in order to make use of this API?
Also, does this recognition service needed to be paid?