Forums > MaxMSP

Multitrack midi – midifile and detonate

June 21, 2007 | 1:47 pm

Tried midifile for multitrack files. Note that it works fine if you use it
the way they apparently intended – recording files into the object and
writing them. Reading existing midifiles is problematic. Old files that
use key off messages don’t work because midifile apparently uses keyon with
velocity 0 for key off. Probably something easy to change.

Had another look at detonate and it seems to be working better than I
remember. Perhaps it has been fixed. The problems I encountered were that
write and export actually behaved differently – now the doc says they are
identical. Both finale and sibelius no read the exported midi files
correctly. One thing I would like to see is absolute record location like
midifile has. That is you tell detonate where you want to record instead of
how far beyond the most recent note. I though I had found a work around by
using negative delta times – i.e. -1000 60 64 2000 2 4 to record a half note
C3 one second earlier than the previous note on channel 2 of track 4.
Didn’t work because detonate ignores negative delta times.

So I am still looking for that perfect multitrack midi file object.

Cheers
Gary Lee Nelson
Oberlin College
http://www.timara.oberlin.edu/GaryLeeNelson


January 22, 2014 | 4:26 am

Dl the cnmat stuff: http://cnmat.berkeley.edu/downloads and try midifile.help.pat


January 22, 2014 | 5:13 am

hmm finally it seems ftm.play.maxhelp is more versatile to me (from http://ftm.ircam.fr/index.php/Main_Page )


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