Java Wav文件错误（javax.sound.sampled.UnsupportedAudioFileException：无法从输入文件中获取音频输入流） [英] Java Wav file Error (javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input file)
问题描述
我的Java项目中有两个类，一个是
I have two Classes in my Java Project one is
反弹
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Rebound
{
public static void main (String[] args)
{
JFrame frame = new JFrame ("Rebound");
frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new ReboundPanel());
frame.pack();
frame.setVisible(true);
}
}
，第二个是ReboundPanel
and the second one is ReboundPanel
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.sound.sampled.*;
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.Clip;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
public class ReboundPanel extends JPanel
{
private final int WIDTH = 600, HEIGHT = 300;
private final int DELAY = 20, IMAGE_SIZE = 35;
private ImageIcon image1, image2, image3;
private Timer timer;
private int x1, y1, moveX1, moveY1, x2, y2, moveX2, moveY2, x3, y3;
Clip clip;
DataLine.Info info;
public ReboundPanel() throws Exception
{
timer = new Timer(DELAY, new ReboundListener());
image1 = new ImageIcon ("happyFace1.gif");
image2 = new ImageIcon ("happyFace2.gif");
x1 = 0;
y1 = 100;
x2 = 40;
y2 = 0;
moveX1 = moveY1 = 3;
moveX2 = moveY2 = 5;
setPreferredSize (new Dimension(WIDTH, HEIGHT));
setBackground (Color.black);
timer.start();
image3 = new ImageIcon ("fire.gif");
File soundFile = new File("explosion.wav");
AudioInputStream sound = AudioSystem.getAudioInputStream(soundFile);
DataLine.Info info = new DataLine.Info (Clip.class, sound.getFormat());
clip = (Clip) AudioSystem.getLine(info);
clip.open(sound);
clip.start();
}
public void paintComponent (Graphics page)
{
super.paintComponent (page);
image1.paintIcon (this, page, x1, y1);
image2.paintIcon (this, page, x2, y2);
image3.paintIcon (this, page, x2, y2);
}
private class ReboundListener implements ActionListener
{
public void actionPerformed (ActionEvent event)
{
x1 += moveX1;
y1 += moveY1;
x2 += moveX2;
y2 += moveY2;
if (x1 <= 0 || x1 >= WIDTH-IMAGE_SIZE)
moveX1 = moveX1 * -1;
if (y1 <= 0 || y1 >= HEIGHT-IMAGE_SIZE)
moveY1 = moveY1 * -1;
if (x2 <= 0 || x2 >= WIDTH-IMAGE_SIZE)
moveX2 = moveX2 * -1;
if (y2 <= 0 || y2 >= HEIGHT-IMAGE_SIZE)
moveY2 = moveY2 * -1;
if (Math.abs(y1-y2) <= IMAGE_SIZE-2 && Math.abs(x1-x2)<= IMAGE_SIZE-2)
{
moveY2 = moveY2 * -1;
moveX2 = moveX2 * -1;
moveY1 = moveY1 * -1;
moveX1 = moveX1 * -1;
x3=x2;
y3=y2-2*IMAGE_SIZE;
clip.loop(Clip.LOOP_CONTINUOUSLY);
}
if (Math.abs(y1-y2) >= 4*IMAGE_SIZE && Math.abs(x1-x2) >= 4*IMAGE_SIZE)
{
x3=-200;
y3=-200;
if (clip.isRunning()) clip.stop();
}
repaint();
}
}
}
当我尝试运行程序我收到以下错误
When I try to run the program I get the following error
javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input file
at javax.sound.sampled.AudioSystem.getAudioInputStream(AudioSystem.java:1187)
at ReboundPanel.<init>(ReboundPanel.java:47)
at Rebound.main(Rebound.java:21)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at ReboundPanel$ReboundListener.actionPerformed(ReboundPanel.java:99)
at javax.swing.Timer.fireActionPerformed(Timer.java:312)
at javax.swing.Timer$DoPostEvent.run(Timer.java:244)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:682)
at java.awt.EventQueue$3.run(EventQueue.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
根据我的规范，我的目标是让两个幸福的面孔在框架中移动，当它们碰撞声音和火灾/爆炸的图像时应该显示和d isappear
According to my Code my goal is to make two happy faces move in the frame and when they both collide a sound along with an image of fire/explosion should show up and disappear
请帮助我向我的导师展示这个项目...
Please help I have to show this project to my instructor...
推荐答案
仅仅因为文件是WAV并不意味着JavaSound支持它。 WAV文件是容器格式，并且实际原始数据（样本）可以是不同格式，包括各种位深度的有符号/无符号PCM，或者它可以是压缩格式。我找不到JavaSound的兼容性表，但是JMF的兼容性表（这会给你一个好主意）就在这里：
Just because a file is a WAV doesn't mean it is supported by JavaSound. A WAV file is a container format, and the actual raw data (the samples) may be in different formats, including signed/unsigned PCM at a variety of bit depths or it may be in a compressed format. I can't find the compatibility table for JavaSound, but the compatibility table for JMF (which will give you a good idea) is here:
http://www.oracle.com/technetwork/java/javase/formats-138492.html
解决方案是将WAV文件转换为更通用的格式，例如使用可读取当前文件的转换程序的16位PCM（SoX，Adacity ，QuickTime，ProTools等。）
The solution is to convert the WAV file to a more generic format, like 16-bit PCM using a conversion program that can read your current file (SoX, Adacity, QuickTime, ProTools, etc).
更准确地说，您可能想要创建一个位深度为16位的WAV文件（小端 - 这个是默认值，所以如果你没有看到它不担心），立体声或单声道应该工作。您可能还需要考虑常见的采样率，例如44,100 Hz或48,000 Hz（现在大多数计算机应支持这两种速率，但前者更常见）。
To be more precise, you may want to create a WAV file with a bit depth of 16-bits (little endian -- this is the default, so if you don't see it don't worry), stereo or mono should work. You may also want to consider common sample rates such as 44,100 Hz, or 48,000 Hz (most computers nowadays should support both rates, but the former is somewhat more common).
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