I want to change the bit rate of wave file.

so I searched in the net and I figure out that the wave file contain a header which is 44 bytes length , and the 25,26,27 and 28 byte are used to store the bit rate of wave file

so I take the wave and store it in an array of byte, then changes the value of bytes that used to store the bit rate of wave.

here is the code :

```
        private int sampleRate;
        private byte[] ByteArr;
        private MemoryStream ByteMem;
        ByteArr = null;
        ByteMem = null;
        ByteArr = File.ReadAllBytes(pathOfWav.Text);
        sampleRate = BitConverter.ToInt32(ByteArr, 24) * 2;
        Array.Copy(BitConverter.GetBytes(sampleRate), 0, ByteArr, 24, 4);
        ByteMem = new MemoryStream(ByteArr);

```

here I stored the Wave file location on `pathOfWav.Text` which is a textBox, then I stored All the bytes of wave file in `ByteArr` then convert the 4 byte (from 25 to 28) to Int32 and multiply it by 2 to Increase the speed of speech and stored the value in `sampleRate` 
after that I modify the previous `ByteArr` with the new value of Bit Rate `sampleRate`, then I instance a new MemoryStream .

my question is,, how to play the new Wave stream using Naudio ???