[Question]: How to listen to audio guidance events

[mosesgameli]

I'm building an app where users can play our radio during a navigation session. I want to listen for audio guidance events in order to duck the radio volume.

[altaf2892]

@jokerttu @mosesgameli can we get response on this .

[mosesgameli]

Hi @altaf2892

For the time being, I decided to manually handle audio interruptions using audio_session package

[altaf2892]

Hi @altaf2892

For the time being, I decided to manually handle audio interruptions using audio_session package

Can u please share part of code .. might help me.

_i tried to implement just roughly _
added below code. but i m not getting any logs now i dont know why it it happening

AudioSession.instance.then((audioSession) async {
      // This line configures the app's audio session, indicating to the OS the
      // type of audio we intend to play. Using the "speech" recipe rather than
      // "music" since we are playing a podcast.
      await audioSession.configure(AudioSessionConfiguration.speech());
      // Listen to audio interruptions and pause or duck as appropriate.
      _handleInterruptions(audioSession);
      // Use another plugin to load audio to play.
      await _player.setUrl(
          "https://s3.amazonaws.com/scifri-episodes/scifri20181123-episode.mp3");
    });


  void _handleInterruptions(AudioSession audioSession) {
    // just_audio can handle interruptions for us, but we have disabled that in
    // order to demonstrate manual configuration.
    bool playInterrupted = false;
    audioSession.becomingNoisyEventStream.listen((_) {
      debugPrint('PAUSE');
      _player.pause();
    });
    _player.playingStream.listen((playing) {
      playInterrupted = false;
      if (playing) {
        audioSession.setActive(true);
      }
    });
    audioSession.interruptionEventStream.listen((event) {
      debugPrint('interruption begin: ${event.begin}');
      debugPrint('interruption type: ${event.type}');
      if (event.begin) {
        switch (event.type) {
          case AudioInterruptionType.duck:
            if (audioSession.androidAudioAttributes!.usage ==
                AndroidAudioUsage.game) {
              _player.setVolume(_player.volume / 2);
            }
            playInterrupted = false;
            break;
          case AudioInterruptionType.pause:
          case AudioInterruptionType.unknown:
            if (_player.playing) {
              _player.pause();
              playInterrupted = true;
            }
            break;
        }
      } else {
        switch (event.type) {
          case AudioInterruptionType.duck:
            _player.setVolume(min(1.0, _player.volume * 2));
            playInterrupted = false;
            break;
          case AudioInterruptionType.pause:
            if (playInterrupted) _player.play();
            playInterrupted = false;
            break;
          case AudioInterruptionType.unknown:
            playInterrupted = false;
            break;
        }
      }
    });
    audioSession.devicesChangedEventStream.listen((event) {
      debugPrint('Devices added: ${event.devicesAdded}');
      debugPrint('Devices removed: ${event.devicesRemoved}');
    });
  }