func speakNextText() {
    guard let string = textLabel.text else { return }
    let utterance = AVSpeechUtterance(string: string)
    utterance.voice = AVSpeechSynthesisVoice.speechVoices().filter({ $0.name == "Karen" }).first
    voiceSynth.speak(utterance)
}

func configureBackgroundMusic() {
    var backGroundMusic = AVAudioPlayer()
    guard let soundURL: URL = Bundle.main.url(forResource: "music", withExtension: "wav") as URL? else { return }
    do {
        try AVAudioSession.sharedInstance().setCategory(.playback , mode: .default, options: [.duckOthers])
        try AVAudioSession.sharedInstance().setActive(true)
        backGroundMusic = try AVAudioPlayer(contentsOf: soundURL as URL)
        backGroundMusic.numberOfLoops = (-1)
        backGroundMusic.play()
    } catch _ { }
}