Java-播放PCM文件

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PCM文件是原始的采样音频文件，可以使用SourceDataLine进行播放，注意设置采样率(sampleRate)，位数(sampleSizeInBits)以及单双声道(channels)，有时还要注意下数据的大小端(bigEndian)。

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public void playPCM(){
	try {
		File file = new File("/Users/YI/Desktop/audioMY.pcm");  
        System.out.println(file.length());  
        int offset = 0;  
        int bufferSize = Integer.valueOf(String.valueOf(file.length())) ;  
        byte[] audioData = new byte[bufferSize];  
        InputStream in = new FileInputStream(file);  
        in.read(audioData);  
          
        float sampleRate = 44100;  
        int sampleSizeInBits = 16;  
        int channels = 2;  
        boolean signed = true;  
        boolean bigEndian = false;   
        AudioFormat af = new AudioFormat(sampleRate, sampleSizeInBits, channels, signed, bigEndian);  
        SourceDataLine.Info info = new DataLine.Info(SourceDataLine.class, af, bufferSize);  
        SourceDataLine sdl = (SourceDataLine) AudioSystem.getLine(info);  
        sdl.open(af);  
        sdl.start();  
        sdl.addLineListener(new LineListener(){

			@Override
			public void update(LineEvent arg0) {
				try {
					if(currentIndex < ids.size())
						queryMediaInfo(ids.get(currentIndex++));
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
        	
        });
        while (offset < audioData.length) {  
            offset += sdl.write(audioData, offset, bufferSize);  
        }
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
}