我想在我的程序中播放音频文件。我应该去哪里找?
我编写了下面的代码,它可以正常工作。但是我认为它只能处理 .wav
格式。
public static synchronized void playSound(final String url) {
new Thread(new Runnable() {
// The wrapper thread is unnecessary, unless it blocks on the
// Clip finishing; see comments.
public void run() {
try {
Clip clip = AudioSystem.getClip();
AudioInputStream inputStream = AudioSystem.getAudioInputStream(
Main.class.getResourceAsStream("/path/to/sounds/" + url));
clip.open(inputStream);
clip.start();
} catch (Exception e) {
System.err.println(e.getMessage());
}
}
}).start();
}
Thread
是不必要的。Clip
的好例子,请参见 JavaSound info. page。URL
(或 File
),请提供一个实际的 URL
(或 File
)而不是接受代表它们的 String
。(只是我个人的想法。)e.printStackTrace();
比 System.err.println(e.getMessage());
提供更多信息,打字更少。一个糟糕的例子:
import sun.audio.*; //import the sun.audio package
import java.io.*;
//** add this into your application code as appropriate
// Open an input stream to the audio file.
InputStream in = new FileInputStream(Filename);
// Create an AudioStream object from the input stream.
AudioStream as = new AudioStream(in);
// Use the static class member "player" from class AudioPlayer to play
// clip.
AudioPlayer.player.start(as);
// Similarly, to stop the audio.
AudioPlayer.player.stop(as);
我不想写那么多代码来播放一个简单的音效。如果你有JavaFX包(已经包含在我的jdk 8中),这个方法可以运行。
private static void playSound(String sound){
// cl is the ClassLoader for the current class, ie. CurrentClass.class.getClassLoader();
URL file = cl.getResource(sound);
final Media media = new Media(file.toString());
final MediaPlayer mediaPlayer = new MediaPlayer(media);
mediaPlayer.play();
}
提示:您需要初始化JavaFX。一种快速的方法是在应用程序中调用JFXPanel()的构造函数:
static{
JFXPanel fxPanel = new JFXPanel();
}
无论出于何种原因,由wchargin提供的最佳答案在我调用this.getClass().getResourceAsStream()时引发了空指针错误。
对我有效的是以下内容:
void playSound(String soundFile) {
File f = new File("./" + soundFile);
AudioInputStream audioIn = AudioSystem.getAudioInputStream(f.toURI().toURL());
Clip clip = AudioSystem.getClip();
clip.open(audioIn);
clip.start();
}
我会使用以下方式播放声音:
playSound("sounds/effects/sheep1.wav");
在Eclipse项目的基本目录中(不在src文件夹内),sounds/effects/sheep1.wav被定位。
getResourceAsStream()
将返回 null
,或者如果 name
为 null
则抛出异常。如果给定的路径无效,则这不是顶级答案的错误。 - user85421如果想在Java中播放声音,可以参考以下代码。
import java.io.*;
import java.net.URL;
import javax.sound.sampled.*;
import javax.swing.*;
// To play sound using Clip, the process need to be alive.
// Hence, we use a Swing application.
public class SoundClipTest extends JFrame {
public SoundClipTest() {
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setTitle("Test Sound Clip");
this.setSize(300, 200);
this.setVisible(true);
try {
// Open an audio input stream.
URL url = this.getClass().getClassLoader().getResource("gameover.wav");
AudioInputStream audioIn = AudioSystem.getAudioInputStream(url);
// Get a sound clip resource.
Clip clip = AudioSystem.getClip();
// Open audio clip and load samples from the audio input stream.
clip.open(audioIn);
clip.start();
} catch (UnsupportedAudioFileException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (LineUnavailableException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
new SoundClipTest();
}
}
package com.athanazio.jaga.desktop.sound;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
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;
import javax.sound.sampled.UnsupportedAudioFileException;
public class Sound {
AudioInputStream in;
AudioFormat decodedFormat;
AudioInputStream din;
AudioFormat baseFormat;
SourceDataLine line;
private boolean loop;
private BufferedInputStream stream;
// private ByteArrayInputStream stream;
/**
* recreate the stream
*
*/
public void reset() {
try {
stream.reset();
in = AudioSystem.getAudioInputStream(stream);
din = AudioSystem.getAudioInputStream(decodedFormat, in);
line = getLine(decodedFormat);
} catch (Exception e) {
e.printStackTrace();
}
}
public void close() {
try {
line.close();
din.close();
in.close();
} catch (IOException e) {
}
}
Sound(String filename, boolean loop) {
this(filename);
this.loop = loop;
}
Sound(String filename) {
this.loop = false;
try {
InputStream raw = Object.class.getResourceAsStream(filename);
stream = new BufferedInputStream(raw);
// ByteArrayOutputStream out = new ByteArrayOutputStream();
// byte[] buffer = new byte[1024];
// int read = raw.read(buffer);
// while( read > 0 ) {
// out.write(buffer, 0, read);
// read = raw.read(buffer);
// }
// stream = new ByteArrayInputStream(out.toByteArray());
in = AudioSystem.getAudioInputStream(stream);
din = null;
if (in != null) {
baseFormat = in.getFormat();
decodedFormat = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED, baseFormat
.getSampleRate(), 16, baseFormat.getChannels(),
baseFormat.getChannels() * 2, baseFormat
.getSampleRate(), false);
din = AudioSystem.getAudioInputStream(decodedFormat, in);
line = getLine(decodedFormat);
}
} catch (UnsupportedAudioFileException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (LineUnavailableException e) {
e.printStackTrace();
}
}
private SourceDataLine getLine(AudioFormat audioFormat)
throws LineUnavailableException {
SourceDataLine res = null;
DataLine.Info info = new DataLine.Info(SourceDataLine.class,
audioFormat);
res = (SourceDataLine) AudioSystem.getLine(info);
res.open(audioFormat);
return res;
}
public void play() {
try {
boolean firstTime = true;
while (firstTime || loop) {
firstTime = false;
byte[] data = new byte[4096];
if (line != null) {
line.start();
int nBytesRead = 0;
while (nBytesRead != -1) {
nBytesRead = din.read(data, 0, data.length);
if (nBytesRead != -1)
line.write(data, 0, nBytesRead);
}
line.drain();
line.stop();
line.close();
reset();
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
stream.reset();
处出错,导致出现 Resetting to invalid mark
。你建议采取什么措施来解决这个问题? - driimaraw.mark(raw.available()+1)
,然后在while循环中使用raw.reset()
而不是stream.reset()
来解决了这个问题。现在我的问题是当它回到重置时,会有一段间隔时间。我想实现一个像“Clip”一样的连续循环。我没有使用“Clip”,因为操作诸如MASTER_GAIN之类的控件会有大约500毫秒的明显延迟。这可能应该是我稍后要问的问题。 - driimado { ... } while
吗? - Andreas detests censorship对我有效。简单变体。
public void makeSound(){
File lol = new File("somesound.wav");
try{
Clip clip = AudioSystem.getClip();
clip.open(AudioSystem.getAudioInputStream(lol));
clip.start();
} catch (Exception e){
e.printStackTrace();
}
}
有一种替代方法可以在小程序和应用程序中使用,即将音频文件转换为.java文件并直接在代码中使用。
我开发了一个工具,可以大大简化这个过程。它可以简化Java Sound API。
Applet
。您需要将蜂鸣声音频文件提供为wav
文件,但这可行。我在Ubuntu上尝试过: "最初的回答"package javaapplication2;
import java.applet.Applet;
import java.applet.AudioClip;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
public class JavaApplication2 {
public static void main(String[] args) throws MalformedURLException {
File file = new File("/path/to/your/sounds/beep3.wav");
URL url = null;
if (file.canRead()) {url = file.toURI().toURL();}
System.out.println(url);
AudioClip clip = Applet.newAudioClip(url);
clip.play();
System.out.println("should've played by now");
}
}
//beep3.wav was available from: http://www.pacdv.com/sounds/interface_sound_effects/beep-3.wav
Applet
已被弃用。 - Freyaimport java.net.URL;
import java.net.MalformedURLException;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.Clip;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import java.io.IOException;
import java.io.File;
public class SoundClipTest{
//plays the sound
public static void playSound(final String path){
try{
final File audioFile=new File(path);
AudioInputStream audioIn=AudioSystem.getAudioInputStream(audioFile);
Clip clip=AudioSystem.getClip();
clip.open(audioIn);
clip.start();
long duration=getDurationInSec(audioIn);
//System.out.println(duration);
//We need to delay it otherwise function will return
//duration is in seconds we are converting it to milliseconds
Thread.sleep(duration*1000);
}catch(LineUnavailableException | UnsupportedAudioFileException | MalformedURLException | InterruptedException exception){
exception.printStackTrace();
}
catch(IOException ioException){
ioException.printStackTrace();
}
}
//Gives duration in seconds for audio files
public static long getDurationInSec(final AudioInputStream audioIn){
final AudioFormat format=audioIn.getFormat();
double frameRate=format.getFrameRate();
return (long)(audioIn.getFrameLength()/frameRate);
}
////////main//////
public static void main(String $[]){
//SoundClipTest test=new SoundClipTest();
SoundClipTest.playSound("/home/dev/Downloads/mixkit-sad-game-over-trombone-471.wav");
}
}