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Index › Programming Questions & Help › Sound,  Music Libraries › Ess: MP3 issues "Unable to load Sound" i
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Ess: MP3 issues "Unable to load Sound" i (Read 1247 times)
twgonzalez
Ess: MP3 issues "Unable to load Sound" i
Aug 27th, 2008, 8:26pm  
I have spent several hours tracking down issues with MP3's not loading via the export applet (both locally and remotely.)

I am running OS X 10.5.4 with both Safari and Firefox

I have tried referencing the MP3 via both AudioFile and AudioChannel.   Both work correctly in the IDE.   Once I export to an Applet, I get the "can not load sound."  I can see the binary is being embedded in the sketch's JAR based on the JAR size.   I have also tried loading via http reference, and local file, as well as signing my JAR file.  All work in IDE, but not in applet.

If I try with a WAV or AIF format it works in the applet (but then the JAR blows out to over 30 MB.)

The best i can figure is that the Tritonus.JAR is not compatible with the java applet runtime I have, and thus can not decode the MP3 correctly.  Can anyone confirm this?  

I am brand new to processing/java, so any help, work arounds, or more info would be greatly appreciated.

- Tom
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twgonzalez
Re: Ess: MP3 issues "Unable to load Sound&quo
Reply #1 - Aug 29th, 2008, 5:33pm  
For others with the same struggle, I found that using the Minim library solved these issues (and bugs.)

Plus the Minim library was at a little higher level of abstraction and has really cool classes like BeatDetect.   Much easier than rolling my own and leaning the intricacies of Fourier transforms Smiley
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danielle
Re: Ess: MP3 issues "Unable to load Sound&
Reply #2 - Sep 9th, 2008, 8:13am  
It took me a while to figure this one out, but:

You can work around this by:
1) tritonus_share.jar (or whatever you're using) is in a folder called "code"
2) compiling the applet (and make sure tritonus_share.jar is in the applet folder, if not, paste a copy in there)
3) then editing the html file so that wherever it lists jar files, just type in an additional element to that list with "tritonus_share.jar". (i.e. at

<param name="archive" value="myprogram.jar, tritonus_share.jar">

4)Then also make sure that _all_ your jar files in the applet folder are signed (see the Ess page on signing applets)

Hopefully that does it...
Dan I
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V
Re: Ess: MP3 issues "Unable to load Sound&quo
Reply #3 - Oct 23rd, 2008, 2:02pm  
im getting the same "unable to load sound" error.

i placed my applet online and ive followed the instructions from the site to sign my applet and i also added the jar files to my list of jars to load.

still does not work..

any ideas?
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Victor Martins | www.pixelnerve.com/v
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