Java采样-播放原始PCM Wav数据

我现在正在研究声音

我通过读取wav文件并根据wav规范跳过前44个字节来获取字节[]，数据从字节44开始。 我使用22500Hz并通过Audacity将其导出到16位PCM

我的方法是这样的

    private static final AudioFormat format = new AudioFormat(AudioFormat.Encoding.PCM_UNSIGNED,22500f,16,1,2,2,false);

  public static void play(Sound s) throws LineUnavailableException, IOException
  {
    int selectedSample = (int) (Math.random() * ( s.samples.length ));
    Clip clip = AudioSystem.getClip();
    AudioInputStream ais;
    ais = new AudioInputStream(new ByteArrayInputStream(s.samples[selectedSample]),format,s.samples[selectedSample].length);
    clip.open (ais);
    clip.start ();
  }

public class Sound
{
  public byte[][] samples;
  float pitchLow;
  float pitchHigh;
  float volumeLow;
  float volumeHigh;
  byte chance;
}

我的音乐课是这样的

    private static final AudioFormat format = new AudioFormat(AudioFormat.Encoding.PCM_UNSIGNED,22500f,16,1,2,2,false);

  public static void play(Sound s) throws LineUnavailableException, IOException
  {
    int selectedSample = (int) (Math.random() * ( s.samples.length ));
    Clip clip = AudioSystem.getClip();
    AudioInputStream ais;
    ais = new AudioInputStream(new ByteArrayInputStream(s.samples[selectedSample]),format,s.samples[selectedSample].length);
    clip.open (ais);
    clip.start ();
  }

public class Sound
{
  public byte[][] samples;
  float pitchLow;
  float pitchHigh;
  float volumeLow;
  float volumeHigh;
  byte chance;
}

我做错了什么，我没有收到LineUnavailableException，我什么也没听到