record/save audio from voice recognition intent

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@Kaarel’s answer is almost complete – the resulting audio is in intent.getData() and can be read using ContentResolver

Unfortunately, the AMR file that is returned is low quality – I wasn’t able to find a way to get high quality recording. Any value I tried other than “audio/AMR” returned null in intent.getData().

If you find a way to get high quality recording – please comment or add an answer!

public void startSpeechRecognition() {
   // Fire an intent to start the speech recognition activity.
   Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
   // secret parameters that when added provide audio url in the result
   intent.putExtra("android.speech.extra.GET_AUDIO_FORMAT", "audio/AMR");
   intent.putExtra("android.speech.extra.GET_AUDIO", true);

   startActivityForResult(intent, "<some code you choose>");
}

// handle result of speech recognition
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    // the resulting text is in the getExtras:
    Bundle bundle = data.getExtras();
    ArrayList<String> matches = bundle.getStringArrayList(RecognizerIntent.EXTRA_RESULTS)
    // the recording url is in getData:
    Uri audioUri = data.getData();
    ContentResolver contentResolver = getContentResolver();
    InputStream filestream = contentResolver.openInputStream(audioUri);
    // TODO: read audio file from inputstream
}

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