'The wave header is corrupt' while attempting to play BLOB audio file C#

Byte[] toByte_ = File.ReadAllBytes(open.FileName);

    String insertTxtQuery = "INSERT INTO " + nameTable + "(CUST_USERNAME,CUST_FILE,CUST_FILE_PATH) VALUES (@CUST_USERNAME,@CUST_FILE,@CUST_FILE_PATH)";

command = new MySqlCommand(insertTxtQuery, con);

                        command.Parameters.Add("@CUST_USERNAME",MySqlDbType.Text);
command.Parameters["@CUST_USERNAME"].Value = label5.Text;
               
command.Parameters.Add("@CUST_FILE_PATH",MySqlDbType.Text);
command.Parameters["@CUST_FILE_PATH"].Value = getName;

command.Parameters.Add("@CUST_FILE",MySqlDbType.LongBlob);
command.Parameters["@CUST_FILE"].Value = toByte_;
command.ExecuteNonQuery();

String _selectAud = "SELECT CUST_FILE FROM file_info_audi WHERE CUST_USERNAME = @username AND CUST_FILE_PATH = @filename";
command = new MySqlCommand(_selectAud, con);
command.Parameters.AddWithValue("@username", Form1.instance.label5.Text);
command.Parameters.AddWithValue("@filename", label1.Text);


MySqlDataReader _dr = command.ExecuteReader();

DataTable _DT = new DataTable();
_DT.Load(_dr);
Byte[] audioSetup_ = (byte[])_DT.Rows[0][0];

_dr.Close();

byte[] sound = ASCIIEncoding.Default.GetBytes(audioSetup_.ToString());
using(MemoryStream _ms = new MemoryStream(sound)) {
    System.Media.SoundPlayer player = new System.Media.SoundPlayer(_ms);
    player.Load();
    player.Play();
}