Problem in character stream...sound is distorted

Question

hi friends,
I have made a file copy program on audio file(mp3).
its likely succeeded but the destination file give the distorted sound. I have used the character stream to make it done.
however, it was not a problem using byte streams before few days.
below is program
import java.io.*;
public class CopyBytes {
    public static void main(String[] args) throws IOException {
        BufferedReader in = null;
        BufferedWriter out = null;
        char []buff=new char[20000];
        int ch=0,length=30;
        try {
            in = new BufferedReader(new FileReader("1.mp3"));
            out = new BufferedWriter(new FileWriter("2.mp3"));      
          for(;ch!=-1;)
            while ((ch=in.read(buff,0,20000))!=-1) {
                  //System.out.format("%s\n\n break\n",new String(buff));
                  out.write(buff,0,20000);
                   break;               
        } finally {
            if (in != null) {
                in.close();
            if (out != null) {
                out.close();
}although there was not use of two loops, actually i was making file splitter program and got this situation accordingly
any analysis on distorted sound?

Answer 1

san_4u wrote:
I have used the character stream to make it done.Why? Clearly, you are not working with text files, so you shouldn't use FileReader/FileWriter at all, but work with streams and bytes. AFAIK, FileReader/FileWriter may perform special operation on the input/output due to character encodings, which you definitely don't want to happen with non-text files (as e.g. MP3 encoded audio files).