private void Start()
    {
        if (phrases != null)
        {
            phraseRecognizer = new KeywordRecognizer(Phrase.ConvertToStringArray(phrases), ConfidenceLevel.Low);
            phraseRecognizer.OnPhraseRecognized += SpeechRecognizer_OnPhraseRecognized;
            phraseRecognizer.Start();
        }

        foreach (var device in Microphone.devices)
        {
            Debug.Log("Name: " + device);
        }
    }