Unable to cast object of type 'System.Byte[]' to type 'System.IConvertible'

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FMT fmt=new FMT();    

public void ReadFmtHeader()
{
    fmt.s_Sub_Chunk_ID_1 = reader.ReadBytes(4);
    fmt.ui_Sub_Chunk_Size_ID_1 = reader.ReadBytes(4);
    fmt.us_Audio_Format = reader.ReadBytes(2);
    fmt.us_Num_Channels = reader.ReadBytes(2);
    fmt.ui_Sample_Rate = reader.ReadBytes(4);
    fmt.ui_Byte_Rate = reader.ReadBytes(4);
    fmt.us_Block_Align = reader.ReadBytes(2);
    fmt.us_Bits_Per_Sample = reader.ReadBytes(2);

    if (Convert.ToInt32(fmt.ui_Sub_Chunk_Size_ID_1) == 18)// Exception thrown on this line
    {
        // Read any extra values
        int fmtExtraSize = reader.ReadInt16();
        reader.ReadBytes(fmtExtraSize);
    }
}

I am trying to read a wave file, and then recreate it using header info and save to file. I don't know what is the problem. Can anybody help me with this?

c#
1 Answers
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