如何在Java应用程序中播放音频

本文介绍了如何在Java应用程序中播放音频的处理方法，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

我在做一个Java应用程序，我需要播放音频。我打主要是小的声音文件我的大炮发射的（它的大炮射击游戏）和炮弹爆炸，虽然我计划有循环背景音乐。我已经发现了两个不同的方法来做到这一点，但两者不工作我多么希望。

I'm making a java application and I need to play audio. I'm playing mainly small sound files of my cannon firing (its a cannon shooting game) and the projectiles exploding, though I plan on having looping background music. I have found two different methods to accomplish this, but both don't work how I want.

第一种方法是字面上的方法：

The first method is literally a method:

public void playSoundFile(File file) {//java.ittoolbox/groups/technical-functional/java-l/sound-in-an-application-90681 try { //get an AudioInputStream AudioInputStream ais = AudioSystem.getAudioInputStream(file); //get the AudioFormat for the AudioInputStream AudioFormat audioformat = ais.getFormat(); System.out.println("Format: " + audioformat.toString()); System.out.println("Encoding: " + audioformat.getEncoding()); System.out.println("SampleRate:" + audioformat.getSampleRate()); System.out.println("SampleSizeInBits: " + audioformat.getSampleSizeInBits()); System.out.println("Channels: " + audioformat.getChannels()); System.out.println("FrameSize: " + audioformat.getFrameSize()); System.out.println("FrameRate: " + audioformat.getFrameRate()); System.out.println("BigEndian: " + audioformat.isBigEndian()); //ULAW format to PCM format conversion if ((audioformat.getEncoding() == AudioFormat.Encoding.ULAW) || (audioformat.getEncoding() == AudioFormat.Encoding.ALAW)) { AudioFormat newformat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, audioformat.getSampleRate(), audioformat.getSampleSizeInBits() * 2, audioformat.getChannels(), audioformat.getFrameSize() * 2, audioformat.getFrameRate(), true); ais = AudioSystem.getAudioInputStream(newformat, ais); audioformat = newformat; } //checking for a supported output line DataLine.Info datalineinfo = new DataLine.Info(SourceDataLine.class, audioformat); if (!AudioSystem.isLineSupported(datalineinfo)) { //System.out.println("Line matching " + datalineinfo + " is not supported."); } else { //System.out.println("Line matching " + datalineinfo + " is supported."); //opening the sound output line SourceDataLine sourcedataline = (SourceDataLine) AudioSystem.getLine(datalineinfo); sourcedataline.open(audioformat); sourcedataline.start(); //Copy data from the input stream to the output data line int framesizeinbytes = audioformat.getFrameSize(); int bufferlengthinframes = sourcedataline.getBufferSize() / 8; int bufferlengthinbytes = bufferlengthinframes * framesizeinbytes; byte[] sounddata = new byte[bufferlengthinbytes]; int numberofbytesread = 0; while ((numberofbytesread = ais.read(sounddata)) != -1) { int numberofbytesremaining = numberofbytesread; sourcedataline.write(sounddata, 0, numberofbytesread); } } } catch (Exception e) { e.printStackTrace(); } }

这样做的问题是，我的整个程序停止，直到声音文件完成，或者至少是接近尾声了。

The problem with this is that my entire program stops until the sound file is finished, or at least nearly finished.

第二种方法是这样的：

File file = new File("Launch1.wav"); AudioClip clip; try { clip = JApplet.newAudioClip(file.toURL()); clip.play(); } catch (Exception e) { e.getMessage(); }

我这里的问题是，每次声音文件提前结束或不玩都取决于我在哪里放置code。

The problem I have here is that every time the sound file ends early or doesn't play at all depending on where I place the code.

时他们没有办法播放声音没有上述问题？难道我做错了什么？任何帮助是极大的AP preciated。

Is their any way to play sound without the above mentioned problems? Am I doing something wrong? Any help is greatly appreciated.

推荐答案

有关你必须创建另一个线程音频第一种方法。

For the first method you have to create another thread for audio.

例如这样的：

new Thread( new Runnable() { public void run() { try { // PLAY AUDIO CODE } catch (Exception e) { e.printStackTrace(); } } }).start();

当然，你必须确保previous声音不还在打。

Of course you have to make sure that previous sound isn't still playing.