how to trim header and side information of mp3 frame using Naudio and c#

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C#

My Problem is to get ACTUAL DATA of a mp3 frame. For this I have used NAudio and get RawData but I think in the RawData property, it returns all the bytes of the frame including header and side information.

Code is given below:

private void button1_Click(object sender, EventArgs e)
{
    Mp3FileReader reader = new Mp3FileReader("file.mp3");
    Mp3Frame mp3Frame = reader.ReadNextFrame();
    byte [] FrameByteArray =  mp3Frame.RawData;

    BitArray bits = new BitArray(FrameByteArray);
    Console.Write(mp3Frame.RawData.Length);
    foreach (bool b in bits)
    {
        if (b == true)
        {
            Console.Write(" 1");
        }
        else
        {
            Console.Write(" 0");
        }
    }
    reader.Close();
}

it returns all frame data in bits including header and side information. But I only need actual data of every frame without header and side information.

Can anyone help??