Is It Possible To Use Android Api Outside An Android Project?

More specifically, is it possible for an non-android Java application to use android's speech recognition. I figured I could use cmu sphinx or something similar, but the whole send

Solution 1:

More specifically, is it possible for an non-android Java application to use android's speech recognition.

No. AFAIK, it is not open source.

Solution 2:

See https://stackoverflow.com/questions/5613167/source-code-for-the-googles-voice-search-activity/5621683#5621683

From that thread:

I don't know if the Android sources are available, but Google did upgrade Chrome to include speech recognition and those sources are available. I don't think that Google wants people to call this service directly, and it likely violates some terms of service somewhere if you do, but check out http://mikepultz.com/2011/03/accessing-google-speech-api-chrome-11/ to see the service behind Chrome speech recognition which I suspect is similar to Android.

As that article says:

http://src.chromium.org/viewvc/chrome/trunk/src/content/browser/speech/

It looks like the audio is collected from the mic, and then passed via an HTTPS POST to a Google web service, which responds with a JSON object with the results. Looking through their audio encoder code, it looks like the audio can be either FLAC or Speex- but it looks like it's some sort of specially modified version of Speex- I'm not sure what it is, but it just didn't look quite right.

Also, see Google's voice search speech recognition service - it might have some useful links to information.

Alternatively, there are commercial speech recognition services available see http://yapme.com/speech-cloud.html, Nuance, http://www.ispeech.org/developers, and others listed at Server-side Voice Recognition.