[英]Clip won't play sound in Java
以下代码既不会发出声音,也不会打印堆栈跟踪。 如果我进行调试,则跳过clip.start()
将使声音播放一秒钟。 有人知道我在做什么错吗? 谢谢。
import java.net.URL;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
public class Driver {
public static void main(String[] args) {
try {
URL url = new URL("http://api.voicerss.org/?KEY=b1a362bc35014e9c9dcd8d3536aac7ad&SRC=This%20is%20a%20test&HL=en-gb&C=WAV&F=48khz_16bit_stereo");
AudioInputStream sound = AudioSystem.getAudioInputStream(url);
DataLine.Info info = new DataLine.Info (Clip.class, sound.getFormat());
Clip clip = (Clip) AudioSystem.getLine(info);
clip.open(sound);
clip.start();
while(clip.isRunning());
} catch (Exception e) {
e.printStackTrace();
}
}
}
同样,将while(clip.isRunning(());
更改为while(clip.isRunning()) System.out.println("running");
不会导致任何输出。
这与线程问题有关。当我尝试在“事件调度线程”中运行它时,它运行正常。
您可以从以下讨论中了解EDT:
注意:我希望其他人可以为此找到更好的解决方案。
import java.io.IOException;
import java.net.URL;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import javax.swing.SwingUtilities;
public class Driver {
@SuppressWarnings("empty-statement")
public static void main(String[] args) {
try {
URL url = new URL("http://api.voicerss.org/?KEY=b1a362bc35014e9c9dcd8d3536aac7ad&SRC=Your%20a%20fag&HL=en-gb&C=WAV&F=48khz_16bit_stereo");
AudioInputStream sound = AudioSystem.getAudioInputStream(url);
DataLine.Info info = new DataLine.Info (Clip.class, sound.getFormat());
final Clip clip = (Clip)AudioSystem.getLine(info);
clip.open(sound);
clip.setFramePosition(0);
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
clip.start();
}
});
} catch (IOException | LineUnavailableException | UnsupportedAudioFileException e) {
e.printStackTrace();
}
}
}
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