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sharing audio input on Android -
i doing preparation research android phone app involve voice search or speech recognition while user simultaneously engaged in phone call. i'm finding when in middle of call , attempt invoke voice search or similar action take input microphone "audio error" message. phone app take exclusive control on microphone input of phone such other apps cannot access audio input?
in answer direct question, yes. phone app takes full exclusive control on microphone input. same apps use microphone. 1 app can have access microphone @ time. however, in hope app, can access voice uplink stream, same thing (it spoken mic , uploaded service towers), plus won't interfere call @ all. can this:
mediarecorder mrecorder = new mediarecorder(); mrecorder.setaudiosource(mediarecorder.audiosource.voice_uplink);
you have add permissions record manifest , such, that's that. luckily speech recognition stuff built in, should able find out how poking around bit on here or googleing it. unfortunately, myself don't have offer in field however. hope helps!
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