Remix.asia ... 

public class SoundEncodMP3 extends Thread{
	private javax.sound.sampled.AudioInputStream audioInputStream;
	private javax.sound.sampled.AudioFileFormat.Type type;
	private java.io.File file;

	private SoundEncodMP3(
		javax.sound.sampled.AudioInputStream audioInputStream,
		javax.sound.sampled.AudioFileFormat.Type type,
		java.io.File file
	){
		this.audioInputStream = audioInputStream;
		this.type = type;
		this.file = file;
	}

	public void run(){
		try{
			javax.sound.sampled.AudioSystem.write( audioInputStream, type, file );
		}catch( Exception exception ){
			exception.printStackTrace( System.err );
		}
	}

	public static void main( String[] args ){
		final javax.sound.sampled.AudioFormat.Encoding AudioFormat_Encoding_MPEG1L3 =
			org.tritonus.share.sampled.Encodings.getEncoding( "MPEG1L3" );
		final javax.sound.sampled.AudioFileFormat.Type AudioFileFormat_Type_MP3 =
			org.tritonus.share.sampled.AudioFileTypes.getType( "MP3", "mp3" );
		javax.sound.sampled.TargetDataLine targetDataLine = null;
		
		try{
			javax.sound.sampled.AudioFormat audioFormat =
				new javax.sound.sampled.AudioFormat(
					48000.0F, 16, 2, true, true );

			targetDataLine =
				(javax.sound.sampled.TargetDataLine)javax.sound.sampled.AudioSystem.getLine(
					new javax.sound.sampled.DataLine.Info(
						javax.sound.sampled.TargetDataLine.class,
						audioFormat )
				);

			targetDataLine.open();
			targetDataLine.start();

			javax.sound.sampled.AudioInputStream audioInputStreamPlay =
				new javax.sound.sampled.AudioInputStream( targetDataLine );
			javax.sound.sampled.AudioInputStream audioInputStreamRec =
				javax.sound.sampled.AudioSystem.getAudioInputStream(
					AudioFormat_Encoding_MPEG1L3,
					audioInputStreamPlay );
			SoundEncodMP3 recorder = new SoundEncodMP3(
				audioInputStreamRec,
				AudioFileFormat_Type_MP3,
				new java.io.File( "test.mp3" ) );

			recorder.start();
			Thread.sleep( 10000 );

			targetDataLine.stop();
			recorder.join();
		}catch( Exception exception ){
			exception.printStackTrace( System.err );
			System.exit( 1 );
		}finally{
			if( null != targetDataLine )
				targetDataLine.close();
			System.exit( 0 );
		}
	}
}