do I need to close an audio Clip?
- by Michael
have an application that processes real-time data and is supposed to beep when a certain event occurs. The triggering event can occur multiple times per second, and if the beep is already playing when another event triggers the code is just supposed to ignore it (as opposed to interrupting the current beep and starting a new one). Here is the basic code:
Clip clickClip
public void prepareProcess() {
super.prepareProcess();
clickClip = null;
try {
clipFile = new File("C:/WINDOWS/Media/CHIMES.wav");
ais = AudioSystem.getAudioInputStream(clipFile);
clickClip = AudioSystem.getClip();
clickClip.open(ais);
fileIsLoaded = true;
} catch (Exception ex) {
clickClip = null;
fileIsLoaded = false;
}
}
public void playSound() {
if (fileIsLoaded) {
if ((clickClip==null) || (!clickClip.isRunning())) {
try {
clickClip.setFramePosition(0);
clickClip.start();
} catch (Exception ex) {
System.out.println("Cannot play click noise");
ex.printStackTrace();
}
}
}
The prepareProcess method gets run once in the beginning, and the playSound method is called every time a triggering event occurs. My question is: do I need to close the clickClip object? I know I could add an actionListener to monitor for a Stop event, but since the event occurs so frequently I'm worried the extra processing is going to slow down the real-time data collection.
The code seems to run fine, but my worry is memory leaks. The code above is based on an example I found while searching the net, but the example used an actionListener to close the Clip specifically "to eliminate memory leaks that would occur when the stop method wasn't implemented". My program is intended to run for hours so any memory leaks I have will cause problems.
I'll be honest: I have no idea how to verify whether or not I've got a problem. I'm using Netbeans, and running the memory profiler just gave me a huge list of things that I don't know how to read. This is supposed to be the simple part of the program, and I'm spending hours on it. Any help would be greatly appreciated!
Michael
