如何在Java中对多声道声音输入进行采样

import javax.sound.sampled.*;
import java.io.*;

public class MultiChannelAudioSampling {
    public static void main(String[] args) {
        try {
            // 获取音频输入设备
            Mixer.Info[] mixers = AudioSystem.getMixerInfo();
            Mixer mixer = AudioSystem.getMixer(mixers[0]);

            // 设置音频格式
            AudioFormat format = new AudioFormat(44100, 16, 2, true, true);

            // 创建音频输入流
            DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
            TargetDataLine line = (TargetDataLine) mixer.getLine(info);
            line.open(format);
            line.start();

            // 创建音频输出流
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            AudioSystem.write(new AudioInputStream(line), AudioFileFormat.Type.WAVE, out);

            // 保存WAV文件
            FileOutputStream fos = new FileOutputStream("output.wav");
            fos.write(out.toByteArray());
            fos.close();

            line.stop();
            line.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}