audio - Join two WAV files from Java?

Question

What's the simplest way to concatenate two WAV files in Java 1.6? (Equal frequency and all, nothing fancy.)

(This is probably sooo simple, but my Google-fu seems weak on this subject today.)

Answer 1

Here is the barebones code:

import java.io.File;
import java.io.IOException;
import java.io.SequenceInputStream;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;

public class WavAppender {
    public static void main(String[] args) {
        String wavFile1 = "D:\wav1.wav";
        String wavFile2 = "D:\wav2.wav";

        try {
            AudioInputStream clip1 = AudioSystem.getAudioInputStream(new File(wavFile1));
            AudioInputStream clip2 = AudioSystem.getAudioInputStream(new File(wavFile2));

            AudioInputStream appendedFiles = 
                            new AudioInputStream(
                                new SequenceInputStream(clip1, clip2),     
                                clip1.getFormat(), 
                                clip1.getFrameLength() + clip2.getFrameLength());

            AudioSystem.write(appendedFiles, 
                            AudioFileFormat.Type.WAVE, 
                            new File("D:\wavAppended.wav"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}