void SayPL(string text)
        {
            try{
                string tmp_mp3 = "a.mp3";
                if (IsFileLocked(tmp_mp3))
                {
                    tmp_mp3 = "a1.mp3";
                }

                Google_Speech.Say(text, tmp_mp3, "pl");
                ExecuteCommandSync(tmp_mp3);
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
        }
        /// <summary>
        /// rozpoznaj polecenie z pliki audio(.flac)
        /// </summary>
        /// <param name="flac_FileName">plik flac z daymi audio</param>
        private bool RecognizeCommand(string flac_FileName)
        {
            try
            {
                SR =
                    Google_Speech.ProcessFlacFile(flac_FileName, 16000, LANGUAGE, 10);
            }
            catch (Exception e)
            {
                Debug.Fail("RecognizeCommand() " + e.Message);
            }


            //FAIL!
            if (SR == null || SR.hypotheses.Count() == 0)
            {
                textBox4.Text      = "fail";
                textBox4.ForeColor = System.Drawing.Color.DarkRed;
                treeView1.Nodes.Clear();
                return(false);
            }

            //SUCES
            textBox4.ForeColor = System.Drawing.Color.DarkGreen;


            //RAW JSON
            textBox3.Text = SR.json_mem;
            //---

            //textBox nodes
            //-------------------
            treeView1.Nodes.Clear();

            List <TreeNode> l = new List <TreeNode>();

            l.Add(new TreeNode("staus: " + SR.status));

            l.Add(new TreeNode("id: " + SR.ID));

            List <TreeNode> l2 = new List <TreeNode>();

            foreach (Google_Speech.SpeechInputResult.Hypothesis h in SR.hypotheses)
            {
                l2.Add(new TreeNode(h.ToString()));
            }
            l.Add(new TreeNode("hypothese (" + SR.hypotheses.Count() + ")", l2.ToArray()));

            TreeNode treeNode = new TreeNode("Google speech-api response", l.ToArray());

            treeView1.Nodes.Add(treeNode);

            treeView1.ExpandAll();
            //-------------------


            //best responese
            textBox4.Text = SR.getBestHypothesis().utterance + "@" + 100.0 * SR.getBestHypothesis().confidence + "%";

            switch (SR.status)
            {
            case 0:
                treeView1.BackColor = System.Drawing.Color.GreenYellow;
                break;

            case 5:
                treeView1.BackColor = System.Drawing.Color.PaleVioletRed;
                break;

            default:
                MessageBox.Show("WTF?! zły status");
                break;
            }
            //------------------


            return(true);
        }