private static SpeechRecognitionEngine Rec = new SpeechRecognitionEngine(new CultureInfo("es-ES"));
    private static SpeechSynthesizer Synth = new SpeechSynthesizer();
    private static System.Timers.Timer CountDown = new System.Timers.Timer();
    private static System.Media.SoundPlayer Player = new System.Media.SoundPlayer(@"sound.wav");
    public static DBConnection Connection = new DBConnection();

    public static void Start()
    {
        DBConnection connection = new DBConnection();
        Choices commands = new Choices();
        commands.Add(connection.RetrieveAllWords());
        GrammarBuilder gBuilder = new GrammarBuilder();
        gBuilder.Append(commands);
        Grammar grammar = new Grammar(new GrammarBuilder(gBuilder, 0, 100));
        CountDown.Elapsed += new ElapsedEventHandler(TimesUp);
        CountDown.Interval = 10000;
        CountDown.Enabled = true;
        CountDown.AutoReset = false;
        try{Rec.LoadGrammarAsync(grammar);}
        catch(FormatException e){MessageBox.Show(e.Message, e.GetType().ToString(), MessageBoxButtons.OK, MessageBoxIcon.Error);}
        Rec.SetInputToDefaultAudioDevice();
        Rec.RecognizeAsync(RecognizeMode.Multiple);
        Rec.SpeechRecognized += Rec_SpeechRecognized;
        Application.Run(new ManualActivation());
    }