Music duration

[René Micout]

Thank you VERY much Kurt !!!
I will look it (that ?) this week-end. If there are still  
"dark" ("obscur" in french), I will ask you some explanation.
René

Le 12 févr. 09 à 01:02, Kurt Kaufman a écrit :

> "...I know your work and I appreciate it, but.... but...
> It is a little bit complex for me :-(
> I dont understand binaryEncode(etc...)
> and also the bridge between Revolution (code) and Midi..."
>
> René,
>
> I know it looks complicated.  I think it would take me a while to  
> figure it out again, even though I commented the scripts fairly  
> heavily!
> But once you understand what makes up a MIDI file, which parts are  
> constant (always the same in every MIDI file of that type), and  
> which parts are variable (different in each music track), you see  
> that it is not that complex.  If you look at the MIDI format  
> document, you'll see the various parts described in the order in  
> which they appear.
>
> At least MIDI files are generally not very big, so if you want to  
> open them up using a Hex editor, you're not scanning a tremendous  
> amount of data.  To that end I would use MIDI Builder to create a  
> MIDI file with a single note, and then take a look using HexEdit:
>
> http://sourceforge.net/project/showfiles.php?group_id=9366
> (there's a French version, too)
>
> Now compare what's in the MIDI format document with what you see in  
> the HexEdit.
>
> Rev's binaryEncode function is called after all of the various  
> parts of the data have been set up, as most of the MIDI data cannot  
> be represented by ascii (it's not printable, for the most part).   
> But the binaryEncode function is automatic;  you just have to give  
> the function its data and the proper parameters, and Rev does the  
> rest. Rev makes it easy: You can simply add the successive bytes of  
> encoded data "after" what's already there.  The file can be created  
> in a fraction of a second and played almost immediately.  Rev's QT  
> player object handles most of the work, you just have to send it  
> data that it understands.
>
> Hope this helps,
> Kurt
>
> further info:
> http://crystal.apana.org.au/ghansper/midi_introduction/ 
> midi_file_format.html
> http://www.harmony-central.com/MIDI/Doc/doc.html
>
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