错误播放的AudioInputStream [英] Error playing AudioInputStream
本文介绍了错误播放的AudioInputStream的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我要创建2 的JMenuItem
,可以启动和停止背景音乐。
I want to create 2 JMenuItem
that can start and stop the background audio.
下面是我的code:
public class MainClass extends JFrame
{
private AudioInputStream audioInputStream;
private Clip clip;
public MainClass(String title)
{
try
{
audioInputStream = AudioSystem.getAudioInputStream(new File("Background.wav"));
clip = AudioSystem.getClip();
clip.loop(Clip.LOOP_CONTINUOUSLY);
clip.open(audioInputStream);
}
catch(Exception e)
{
System.out.println("Error with playing sound.");
e.printStackTrace();
}
}
public void startSound()
{
clip3.start();
settingSubMenuItem1.setEnabled(false);
settingSubMenuItem2.setEnabled(true);
}
public void stopSound()
{
clip3.stop();
settingSubMenuItem1.setEnabled(true);
settingSubMenuItem2.setEnabled(false);
}
private class MenuItemListener implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
if(e.getSource() == settingSubMenuItem1)
{
startSound();
}
if(e.getSource() == settingSubMenuItem2)
{
stopSound();
}
}
}
}
当我点击 settingSubMenuItem1
,它的做工精细,音频播放。
When I click the settingSubMenuItem1
, it's work fine, audio is played.
但是,当我点击 settingSubMenuItem2
,有错误,如果再次点击 settingSubMenuItem1
,将没有更多的声音
But when I click the settingSubMenuItem2
, there is errors and if click again settingSubMenuItem1
, there will no more sound.
下面是错误的:
Error with playing sound.
java.lang.IllegalStateException: Clip is already open with format PCM_SIGNED 44100.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian and frame lengh of 7658
什么是我的程序的错误?
What is the error of my program?
推荐答案
这SSCCE是一个'空结果在这里,在音频重新启动,没有例外(试过至少3次)。
This SSCCE is a 'null result' here, in that the audio restarts (tried at least 3 times) with no exceptions.
import java.net.URL;
import java.awt.event.*;
import javax.swing.*;
import javax.sound.sampled.*;
public class RestartableLoopSound {
public static void main(String[] args) throws Exception {
URL url = new URL(
"http://pscode.org/media/leftright.wav");
final Clip clip = AudioSystem.getClip();
AudioInputStream ais = AudioSystem.
getAudioInputStream( url );
clip.open(ais);
SwingUtilities.invokeLater(new Runnable() {
public void run() {
final JToggleButton b = new JToggleButton("Loop");
ActionListener listener = new ActionListener() {
public void actionPerformed(ActionEvent ae) {
if (b.isSelected()) {
// loop continuously
clip.loop(Clip.LOOP_CONTINUOUSLY);
} else {
clip.stop();
}
}
};
b.addActionListener(listener);
JOptionPane.showMessageDialog(null, b);
}
});
}
}
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