class WAVReader    {        #region RIFF WAVE Chunk        private string Id; //文件标识        private double Size;  //文件大小        private string Type; //文件类型        #endregion        #region Format Chunk        private string formatId;        private double formatSize;      //数值为16或18，18则最后又附加信息        private int formatTag;        private int num_Channels;       //声道数目，1--单声道；2--双声道        private int SamplesPerSec;      //采样率        private int AvgBytesPerSec;     //每秒所需字节数         private int BlockAlign;         //数据块对齐单位(每个采样需要的字节数)         private int BitsPerSample;      //每个采样需要的bit数        private string additionalInfo;  //附加信息（可选，通过Size来判断有无）        /*         * 以'fmt'作为标示。一般情况下Size为16，此时最后附加信息没有；         * 如果为18则最后多了2个字节的附加信息。         * 主要由一些软件制成的wav格式中含有该2个字节的附加信息         */        #endregion        #region Fact Chunk(可选)        /*                * Fact Chunk是可选字段，一般当wav文件由某些软件转化而成，则包含该Chunk。                */        private string factId;        private int factSize;        private string factData;        #endregion        #region Data Chunk        private string dataId;        private int dataSize;        private List
     
       wavdata = new List
      
       ();  //默认为单声道        #endregion          /// 
       
        /// 读取波形文件并显示        /// 
        /// 
               public void ReadWAVFile(string filePath)        {            if (filePath == "") return;            byte[] id = new byte[4];            byte[] size = new byte[4];            byte[] type = new byte[4];            byte[] formatid = new byte[4];            byte[] formatsize = new byte[4];            byte[] formattag = new byte[2];            byte[] numchannels = new byte[2];            byte[] samplespersec = new byte[4];            byte[] avgbytespersec = new byte[4];            byte[] blockalign = new byte[2];            byte[] bitspersample = new byte[2];            byte[] additionalinfo = new byte[2];    //可选            byte[] factid = new byte[4];            byte[] factsize = new byte[4];            byte[] factdata = new byte[4];            byte[] dataid = new byte[4];            byte[] datasize = new byte[4];            using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))            {                using (BinaryReader br = new BinaryReader(fs, Encoding.UTF8))                {                    #region  RIFF WAVE Chunk                    br.Read(id, 0, 4);                    br.Read(size, 0, 4);                    br.Read(type, 0, 4);                    this.Id = getString(id, 4);                    long longsize = bytArray2Int(size);//十六进制转为十进制                    this.Size = longsize * 1.0;                    this.Type = getString(type, 4);                    #endregion                    #region Format Chunk                    br.Read(formatid, 0, 4);                    br.Read(formatsize, 0, 4);                    br.Read(formattag, 0, 2);                    br.Read(numchannels, 0, 2);                    br.Read(samplespersec, 0, 4);                    br.Read(avgbytespersec, 0, 4);                    br.Read(blockalign, 0, 2);                    br.Read(bitspersample, 0, 2);                    if (getString(formatsize, 2) == "18")                    {                        br.Read(additionalinfo, 0, 2);                        this.additionalInfo = getString(additionalinfo, 2);  //附加信息                    }                    this.formatId = getString(formatid, 4);                    this.formatSize = bytArray2Int(formatsize);                    byte[] tmptag = composeByteArray(formattag);                    this.formatTag = bytArray2Int(tmptag);                    byte[] tmpchanels = composeByteArray(numchannels);                    this.num_Channels = bytArray2Int(tmpchanels);                //声道数目，1--单声道；2--双声道                    this.SamplesPerSec = bytArray2Int(samplespersec);            //采样率                    this.AvgBytesPerSec = bytArray2Int(avgbytespersec);          //每秒所需字节数                       byte[] tmpblockalign = composeByteArray(blockalign);                    this.BlockAlign = bytArray2Int(tmpblockalign);              //数据块对齐单位(每个采样需要的字节数)                    byte[] tmpbitspersample = composeByteArray(bitspersample);                    this.BitsPerSample = bytArray2Int(tmpbitspersample);        // 每个采样需要的bit数                         #endregion                    #region  Fact Chunk                    //byte[] verifyFactChunk = new byte[2];                    //br.Read(verifyFactChunk, 0, 2);                    //string test = getString(verifyFactChunk, 2);                    //if (getString(verifyFactChunk, 2) == "fa")                    //{                    //    byte[] halffactId = new byte[2];                    //    br.Read(halffactId, 0, 2);                    //    byte[] factchunkid = new byte[4];                    //    for (int i = 0; i < 2; i++)                    //    {                    //        factchunkid[i] = verifyFactChunk[i];                    //        factchunkid[i + 2] = halffactId[i];                    //    }                    //    this.factId = getString(factchunkid, 4);                    //    br.Read(factsize, 0, 4);                    //    this.factSize = bytArray2Int(factsize);                    //    br.Read(factdata, 0, 4);                    //    this.factData = getString(factdata, 4);                    //}                    #endregion                    #region Data Chunk                    byte[] d_flag = new byte[1];                    while (true)                    {                        br.Read(d_flag, 0, 1);                        if (getString(d_flag, 1) == "d")                        {                            break;                        }                    }                    byte[] dt_id = new byte[4];                    dt_id[0] = d_flag[0];                    br.Read(dt_id, 1, 3);                    this.dataId = getString(dt_id, 4);                    br.Read(datasize, 0, 4);                    this.dataSize = bytArray2Int(datasize);                    List
       
         testl = new List
        
         ();                    if (BitsPerSample == 8)                    {                        for (int i = 0; i < this.dataSize; i++)                        {                            byte wavdt = br.ReadByte();                            wavdata.Add(wavdt);                            Console.WriteLine(wavdt);                        }                    }                    else if (BitsPerSample == 16)                    {                        for (int i = 0; i < this.dataSize/2; i++)                        {                            short wavdt = br.ReadInt16();                            wavdata.Add(wavdt);                            Console.WriteLine(wavdt);                        }                    }                    #endregion                }            }        }        /// 
         
        /// 数字节数组转换为int        /// 
        /// 
                 /// 
                 private int bytArray2Int(byte[] bytArray)        {            return bytArray[0] | (bytArray[1] << 8) | (bytArray[2] << 16) | (bytArray[3] << 24);        }        /// 
         
        /// 将字节数组转换为字符串        /// 
        /// 
                 /// 
                 /// 
                 private string getString(byte[] bts, int len)        {            char[] tmp = new char[len];            for (int i = 0; i < len; i++)            {                tmp[i] = (char)bts[i];            }            return new string(tmp);        }        /// 
         
        /// 组成4个元素的字节数组        /// 
        /// 
                 /// 
                 private byte[] composeByteArray(byte[] bt)        {            byte[] tmptag = new byte[4] { 0, 0, 0, 0 };            tmptag[0] = bt[0];            tmptag[1] = bt[1];            return tmptag;        }    }