this.daQuerry.SelectCommand = sqlCommand1;

            System.Data.DataTable tMaterial=new System.Data.DataTable();

            this.daQuerry.Fill(tMaterial);

            return tMaterial;

        }

        public string audioStreamCreate(string filePath)

        {

            try

            {

                if (this.fStream != null)

                {

                    this.fStream.Close();

                }

                this.fStream = new FileStream(filePath, FileMode.Open);

            }

            catch (Exception  ex)

            {

                return ex.Message;

            }

            return "ok";

        }

        public byte[] audioStreamTran()

        {

            byte[] audiobyte = new byte[this.onceReadCount+4];

            int readCount = 0;

            byte countByte1, countByte2;

            try

            {

                readCount = this.fStream.Read(audiobyte, 4, onceReadCount);

            }

            catch

            {

                audiobyte[0]=0;               

                return audiobyte;

            }