Image1.ImageUrl = "";
            Label2.Text = "Идёт загрузка карточки...";

            try
            {


               
                SqlConnection conn = new SqlConnection();


                conn.ConnectionString = connectionString;
                SqlCommand myCommand = conn.CreateCommand();
                myCommand.CommandType = CommandType.StoredProcedure;
                myCommand.CommandText = "[ALARMS_KUZET_SELECT_SLVWEB]";
                myCommand.Parameters.Add("@CALLSIGN", SqlDbType.VarChar, 50);
                myCommand.Parameters["@CALLSIGN"].Value = GridView1.SelectedRow.Cells[1].Text;
                myCommand.Parameters.Add("@ID1", SqlDbType.VarChar, 50);
                myCommand.Parameters["@ID1"].Value = "0";

                conn.Open();

                using (SqlDataAdapter adapter = new SqlDataAdapter(myCommand))
                {

                    DataTable dt1 = new DataTable();
                    adapter.Fill(dt1);

                    if (dt1.Rows.Count > 0)
                    {
                        byte[] bytes = (byte[])dt1.Rows[0]["KART"];
                        string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
                        Image1.ImageUrl = "data:image/png;base64," + base64String;
                    }


                }


            }

            catch
            {
            }

 Response.Write("<audio controls> <source src='newalert.wav'  type='audio/wav'></audio>"); 

Response.Write("<audio src='newalert.wav' autoplay='autoplay'></audio>");