在Java中播放WAV文件

Question

Im trying to make sound effects for my game but i couldn't achieve to play it yet. I have looked up everywhere but everytime that i try to do what i see i always have this error:

javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input file
at javax.sound.sampled.AudioSystem.getAudioInputStream(Unknown Source)
at pong.Pong.loadResources(Pong.java:114)
at pong.Pong.<init>(Pong.java:69)
at pong.Pong.main(Pong.java:34)

This the code that i try to run:

try {   
        AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(new File("score.wav"));
        AudioFormat format = audioInputStream.getFormat();
        DataLine.Info info = new DataLine.Info(Clip.class, format);
        clip = (Clip) AudioSystem.getLine(info);
        clip.open(audioInputStream);
        clip.start();

    } catch (UnsupportedAudioFileException | IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (LineUnavailableException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

Just to be sure, i placed the same named same wav file under directly the project folder, src folder, res folder too. I would like to have it opened from res folder by the way but first thing i have to do is just fixing the code to play the sound. Then i can work with the path declaration. Any help would be appreciated!

Answer 1

Try something like this:

    File file = new File("clip.wav");
    if(file.exists()) {
        try {
            AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(file);

            AudioFormat audioFormat = audioInputStream.getFormat();

            DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);

            SourceDataLine sourceLine = (SourceDataLine) AudioSystem.getLine(info);
            sourceLine.open(audioFormat);

            sourceLine.start();

            int nBytesRead = 0;
            byte[] abData = new byte[128000];
            while (nBytesRead != -1) {
                try {
                    nBytesRead = audioInputStream.read(abData, 0, abData.length);
                } catch (IOException e) {
                    e.printStackTrace();
                }
                if (nBytesRead >= 0) {
                    sourceLine.write(abData, 0, nBytesRead);
                }
            }

            sourceLine.drain();
            sourceLine.close();

        } catch (UnsupportedAudioFileException | IOException e) {
            e.printStackTrace();
        } catch (LineUnavailableException e) {
            e.printStackTrace();
        }
    } else {
        System.err.println("The selected file doesn't exist!");
    }

It works fine. If you are using Eclipse (I don't know how it works with others IDEs) make sure you place the file in the project's root folder.

Solution from this question.