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Midi file playback? (Read 1259 times)
ben_hem
Midi file playback?
Mar 30th, 2009, 4:06pm  
Hi,

I've been looking through the sound libraries for a simple midi file playback function.  Just want to drop a midi file into the data folder and loop it as background music.  I know it works if I convert it to .aiff/.wav/.mp3 but I'd like to keep the load time low.

The other question is, would I be better off converting the .mid files to mp3 and using Minim for playback?  I want the graphics to be running as fast as possible, so if midi playback would be processor-intensive I'll settle for a longer load time.

Thanks,
Ben
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ben_hem
Re: Midi file playback?
Reply #1 - Mar 31st, 2009, 1:04am  
Update: got Jm-Etude to play a midi file pretty painlessly:

 Etude e = new Etude(this);
 e.createScore("score","[insert .mid file URL here]");
 e.playMIDI("score");

only problem is, it only works with URLs.  Doesn't seem to find files in the data folder or by their absolute file path.  Which is fine until I want to export an app that can be used offline.  Anyone have experience with this?


Thanks,
Ben

edit: Etude seems to have problems with some midi files (changes tempo and doesn't always include all voices), but it's still a big step forward.
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« Last Edit: Mar 31st, 2009, 2:19am by ben_hem »  
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frederickk
Re: Midi file playback?
Reply #2 - Mar 31st, 2009, 3:35pm  
you can get it to read files in your sketch path like this:

Etude e = new Etude(this);
e.createScore("score", this.sketchPath + "/data/[insert .mid filename here]");
e.playMIDI("score");

Ken
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ben_hem
Re: Midi file playback?
Reply #3 - Apr 1st, 2009, 6:38pm  
Thanks, Ken!

At this point, though, I am moving away from jm-Etude (at the author's suggestion) and toward integrating this:

http://www.jsresources.org/examples/LoopingMidiPlayer14.html

but I am hitting a wall.  I have the .java file included in my sketch as a tab, and it seems to mesh without errors.  But I don't know how to actually create a LoopingMidiPlayer14 object and get it started.

Any suggestions?  Thanks,
Ben
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ben_hem
Re: Midi file playback?
Reply #4 - Apr 2nd, 2009, 6:29am  
Problem solved:
modified the script a bit and called "main" manually.  Added stop, restart, and url functions and got a decent looping midi jukebox.
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