gistfile1.txt

- (void)playNotification {
//    _reader.mute = YES; // Mute AudioJack library
    
    [[AVAudioSession sharedInstance] overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker error:nil]; // Route audio to speakers
    AudioServicesPlaySystemSound (1312); // Only device support. see codes: https://github.com/TUNER88/iOSSystemSoundsLibrary
    [[AVAudioSession sharedInstance] overrideOutputAudioPort:AVAudioSessionPortOverrideNone error:nil]; // Route audio back to Headphones

//    _reader.mute = NO; // Unmute the AudioJack library
}

/**
 * Detect when the audio route has changed manage when Headphone jack is plugged/unplugged so as to never hear the AudioJack tone
 * @param notification the notification registered
 */
-(void)handleRouteChange:(NSNotification*)notification{
    AVAudioSession *session = [AVAudioSession sharedInstance];
    AVAudioSessionPortDescription *input = [[session.currentRoute.inputs count]?session.currentRoute.inputs:nil objectAtIndex:0];
    
    if ([input.portType isEqual: @"MicrophoneBuiltIn"]) {
        // TODO: show FloJack unplugged image
        //    _reader.mute = YES; // Mute AudioJack library
    } else if ([input.portType isEqual: @"MicrophoneWired"]) {
        // TODO: show FloJack plugged-in image
        //    _reader.mute = NO; // Unmute the AudioJack library

    }
}