Pause Phone Ringtone while Speaking through Text To Speech and then Resume

android, android-audiomanager, ringtone, text-to-speech

Solution

Finally after scratching my head for two days i finally did it. For all those who want to implement something like this but are unable to do so here is the code

public void speak(final String talk) throws InterruptedException {
    final AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    int ringVolume = audioManager
            .getStreamVolume(AudioManager.STREAM_RING);
    int musicVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
    currentRingVolume = ringVolume;

    musicVolume = (int) ((musicVolume * seekbarValue) / 100);

    if (PauseRingtone == true) {
        audioManager.setStreamVolume(AudioManager.STREAM_RING, 1,
                AudioManager.FLAG_SHOW_UI);
    } else {
        audioManager.setStreamVolume(AudioManager.STREAM_RING,
                ringVolume, AudioManager.FLAG_SHOW_UI);
    }

    audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, musicVolume, 0);

    int result = tts
            .setOnUtteranceProgressListener(new UtteranceProgressListener() {

                @Override
                public void onStart(String utteranceId) {
                    // TODO Auto-generated method stub

                }

                @Override
                public void onError(String utteranceId) {
                    // TODO Auto-generated method stub

                }

                @Override
                public void onDone(String utteranceId) {
                    // TODO Auto-generated method stub
                    System.out.println("done");
                    audioManager.setStreamVolume(AudioManager.STREAM_RING,
                            currentRingVolume, 0);
                }
            });
    HashMap<String, String> params = new HashMap<String, String>();
    params.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "stringId");
    tts.speak(talk, TextToSpeech.QUEUE_FLUSH, params);
    System.out.println("speaking after tts is over" + talk + " " + result);

}

explaination :-

`ringVolume` - gets the current volume of the ringtone .i.e ringtone volume set in the phone.

`musicVolume` - gets the current volume of the music

`currentRingVolume` just retains the `ringVolume`.

Note- `STREAM_RING` and `STREAM_MUSIC` are different things. See

Now the basic idea is to `mute` the `ringtone` while `TTS` is speaking and then set it to previous value.

`seekBarValue`- is my `SeekBar` which depicts the level of the `TTS` volume w.r.t `musicVolume` and is optional.

`PauseRingtone`- is a `CheckBox Preference` which checks whether we want to pause ringtone while speaking. If `true` is sets the `AudioManager.STREAM_RING` to `1` i.e. `vibrate` else `ringVolume` i.e. `Phone Value`, so both `TTS` and `Ringtone` play at the same time.

audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,musicVolume, 0) 

sets the volume of `TTS` to `musicVolume`. After `TTS` has completed speaking i.e. in `onDone()` we set the volume of `Ringtone` back to the `ringVolume` using `currentRingVolume`.

If my answer helped mark my answer useful.

Problem

Original source