java播放PCM文件

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;

public class test {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		try {
			File file = new File("OutPcm.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 = 16000;
			int sampleSizeInBits = 16;
			int channels = 1;
			boolean signed = true;
			boolean bigEndian = false;
			// sampleRate - 每秒的样本数
			// sampleSizeInBits - 每个样本中的位数
			// channels - 声道数（单声道 1 个，立体声 2 个）
			// signed - 指示数据是有符号的，还是无符号的
			// bigEndian - 指示是否以 big-endian 字节顺序存储单个样本中的数据（false 意味着
			// little-endian）。
			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();
			while (offset < audioData.length) {
				offset += sdl.write(audioData, offset, bufferSize);
			}
		} catch (LineUnavailableException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

}

 

评论

1 楼 gonglil 2014-08-20  

你没有停止sdl吧？