[英]How to play .wav files with java
我正在嘗試使用 Java 播放 *.wav 文件。我希望它執行以下操作:
按下按鈕時,播放短促的蜂鳴聲。
我用谷歌搜索了它,但大部分代碼都不起作用。 有人可以給我一個簡單的代碼片段來播放 a.wav 文件嗎?
最后,我設法做到了以下幾點,並且工作正常
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
public class MakeSound {
private final int BUFFER_SIZE = 128000;
private File soundFile;
private AudioInputStream audioStream;
private AudioFormat audioFormat;
private SourceDataLine sourceLine;
/**
* @param filename the name of the file that is going to be played
*/
public void playSound(String filename){
String strFilename = filename;
try {
soundFile = new File(strFilename);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
try {
audioStream = AudioSystem.getAudioInputStream(soundFile);
} catch (Exception e){
e.printStackTrace();
System.exit(1);
}
audioFormat = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
try {
sourceLine = (SourceDataLine) AudioSystem.getLine(info);
sourceLine.open(audioFormat);
} catch (LineUnavailableException e) {
e.printStackTrace();
System.exit(1);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[BUFFER_SIZE];
while (nBytesRead != -1) {
try {
nBytesRead = audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
e.printStackTrace();
}
if (nBytesRead >= 0) {
@SuppressWarnings("unused")
int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
}
}
這是我不用陽光就可以拿出的最優雅的形式。*:
import java.io.*;
import javax.sound.sampled.*;
try {
File yourFile;
AudioInputStream stream;
AudioFormat format;
DataLine.Info info;
Clip clip;
stream = AudioSystem.getAudioInputStream(yourFile);
format = stream.getFormat();
info = new DataLine.Info(Clip.class, format);
clip = (Clip) AudioSystem.getLine(info);
clip.open(stream);
clip.start();
}
catch (Exception e) {
//whatevers
}
最短形式(無需安裝隨機庫)?
public static void play(String filename)
{
try
{
Clip clip = AudioSystem.getClip();
clip.open(AudioSystem.getAudioInputStream(new File(filename)));
clip.start();
}
catch (Exception exc)
{
exc.printStackTrace(System.out);
}
}
唯一的問題是沒有辦法使* .wav完成后阻塞該方法以關閉並處理數據。 clip.drain()
表示它正在阻止,但不是。 剪輯在start()
之后未正確運行。 我發現的唯一可行但丑陋的方法是:
// ...
clip.start();
while (!clip.isRunning())
Thread.sleep(10);
while (clip.isRunning())
Thread.sleep(10);
clip.close();
您可以使用事件偵聽器在播放剪輯后將其關閉
import java.io.File;
import javax.sound.sampled.*;
public void play(File file)
{
try
{
final Clip clip = (Clip)AudioSystem.getLine(new Line.Info(Clip.class));
clip.addLineListener(new LineListener()
{
@Override
public void update(LineEvent event)
{
if (event.getType() == LineEvent.Type.STOP)
clip.close();
}
});
clip.open(AudioSystem.getAudioInputStream(file));
clip.start();
}
catch (Exception exc)
{
exc.printStackTrace(System.out);
}
}
此處的代碼片段運行良好,並通過Windows聲音進行了測試:
public static void main(String[] args) {
AePlayWave aw = new AePlayWave( "C:\\WINDOWS\\Media\\tada.wav" );
aw.start();
}
使用AudioInputStream
另一種方法:
import java.io.File;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.Line;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
public class CoreJavaSound extends Object implements LineListener {
File soundFile;
JDialog playingDialog;
Clip clip;
public static void main(String[] args) throws Exception {
CoreJavaSound s = new CoreJavaSound();
}
public CoreJavaSound() throws Exception {
JFileChooser chooser = new JFileChooser();
chooser.showOpenDialog(null);
soundFile = chooser.getSelectedFile();
System.out.println("Playing " + soundFile.getName());
Line.Info linfo = new Line.Info(Clip.class);
Line line = AudioSystem.getLine(linfo);
clip = (Clip) line;
clip.addLineListener(this);
AudioInputStream ais = AudioSystem.getAudioInputStream(soundFile);
clip.open(ais);
clip.start();
}
public void update(LineEvent le) {
LineEvent.Type type = le.getType();
if (type == LineEvent.Type.OPEN) {
System.out.println("OPEN");
} else if (type == LineEvent.Type.CLOSE) {
System.out.println("CLOSE");
System.exit(0);
} else if (type == LineEvent.Type.START) {
System.out.println("START");
playingDialog.setVisible(true);
} else if (type == LineEvent.Type.STOP) {
System.out.println("STOP");
playingDialog.setVisible(false);
clip.close();
}
}
}
一個將播放WAV文件的類,直到聲音播放完畢為止,它將進行阻塞:
class Sound implements Playable {
private final Path wavPath;
private final CyclicBarrier barrier = new CyclicBarrier(2);
Sound(final Path wavPath) {
this.wavPath = wavPath;
}
@Override
public void play() throws LineUnavailableException, IOException, UnsupportedAudioFileException {
try (final AudioInputStream audioIn = AudioSystem.getAudioInputStream(wavPath.toFile());
final Clip clip = AudioSystem.getClip()) {
listenForEndOf(clip);
clip.open(audioIn);
clip.start();
waitForSoundEnd();
}
}
private void listenForEndOf(final Clip clip) {
clip.addLineListener(event -> {
if (event.getType() == LineEvent.Type.STOP) waitOnBarrier();
});
}
private void waitOnBarrier() {
try {
barrier.await();
} catch (final InterruptedException ignored) {
} catch (final BrokenBarrierException e) {
throw new RuntimeException(e);
}
}
private void waitForSoundEnd() {
waitOnBarrier();
}
}
沒有Java反射的解決方案DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat)
Java反射會降低性能。 運行: java playsound absoluteFilePathTo/file.wav
import javax.sound.sampled.*;
import java.io.*;
public class playsound {
public static void main (String args[]) throws Exception {
playSound (args[0]);
}
public static void playSound () throws Exception {
AudioInputStream
audioStream = AudioSystem.getAudioInputStream(new File (filename));
int BUFFER_SIZE = 128000;
AudioFormat audioFormat = null;
SourceDataLine sourceLine = null;
audioFormat = audioStream.getFormat();
sourceLine = AudioSystem.getSourceDataLine(audioFormat);
sourceLine.open(audioFormat);
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[BUFFER_SIZE];
while (nBytesRead != -1) {
try {
nBytesRead =
audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
e.printStackTrace();
}
if (nBytesRead >= 0) {
int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
}
}
您也可以通過以下方式使用AudioStream:
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import sun.audio.AudioPlayer;
import sun.audio.AudioStream;
public class AudioWizz extends JPanel implements ActionListener {
private static final long serialVersionUID = 1L; //you like your cereal and the program likes their "serial"
static AudioWizz a;
static JButton playBuddon;
static JFrame frame;
public static void main(String arguments[]){
frame= new JFrame("AudioWizz");
frame.setSize(300,300);
frame.setVisible(true);
a= new AudioWizz();
playBuddon= new JButton("PUSH ME");
playBuddon.setBounds(10,10,80,30);
playBuddon.addActionListener(a);
frame.add(playBuddon);
frame.add(a);
}
public void actionPerformed(ActionEvent e){ //an eventListener
if (e.getSource() == playBuddon) {
try {
InputStream in = new FileInputStream("*.wav");
AudioStream sound = new AudioStream(in);
AudioPlayer.player.start(sound);
} catch(FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
我采用了@greenLizard 的代碼並使其更加健壯。
AudioInputStream
。BufferedInputStream
。 AudioSystem
getAudioInputStream
偶爾IOException
,因為getAutoInputSytream
方法無法備份輸入 stream 並重新開始。希望不會再有例外。
這是修改后的代碼。 ErrorDisplayDialog在 Java Swing 應用程序中將異常顯示為JDialog
。 只需替換為e.printStackTrace();
.
private void playWavFile(String fileName) {
InputStream inputStream = getClass().getResourceAsStream(fileName);
BufferedInputStream bufferedInputStream = new BufferedInputStream(
inputStream);
AudioInputStream audioStream = null;
AudioFormat audioFormat = null;
try {
audioStream = AudioSystem.getAudioInputStream(bufferedInputStream);
audioFormat = audioStream.getFormat();
} catch (UnsupportedAudioFileException e) {
new ErrorDisplayDialog(view.getFrame(),
"UnsupportedAudioFileException", e);
return;
} catch (IOException e) {
new ErrorDisplayDialog(view.getFrame(), "IOException", e);
return;
}
DataLine.Info info = new DataLine.Info(SourceDataLine.class,
audioFormat);
SourceDataLine sourceLine;
try {
sourceLine = (SourceDataLine) AudioSystem.getLine(info);
sourceLine.open(audioFormat);
} catch (LineUnavailableException e) {
new ErrorDisplayDialog(view.getFrame(), "LineUnavailableException",
e);
return;
}
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[128000];
while (nBytesRead != -1) {
try {
nBytesRead = audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
new ErrorDisplayDialog(view.getFrame(), "IOException", e);
return;
}
if (nBytesRead >= 0) {
sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
try {
audioStream.close();
} catch (IOException e) {
new ErrorDisplayDialog(view.getFrame(), "IOException", e);
}
}
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