This is for anyone who knows about midi:
1) I need a midi file to trigger events in Revolution. Is putting the
midi file into a player and then using callbacks the only way? If so,
is there some formula where I can tell exactly what callback number
is associated with what note? I am trying to figure it out using
tempo in the midi file and timescale in the player. So if tempo is 60
beats per minute and the timescale of the player is 600, then at the
end of the 60th beat, a minute should have passed and therefore the
callback number would be 600 * 60 or 36000, but it isn't working out
that perfectly. Maybe tempo in midi or callbacks in Revolution are
not entirely exact?
2) Running midi in a player burns up the cpu. Just having a tiny 20K
midi file in the player and not even playing spikes up Revolution's
use of the cpu to 35% in Activity Monitor, the Apple applications in
the Utilities folder. Then playing the midi file is also more
intensive on the cpu than playing a sound file. The app that I am
writing will be used with a laptop, often on battery power, so this
is a crucial issue. What is the cpu doing with a dormant midi file
that is so difficult and crucial so as to use 35% of the cpu? Is this
a Quicktime bug, Revolution bug?
3) Is it always a midi FILE that has to play? One thing I need is a
click that plays endlessly at a specific tempo. I am creating the
click by making a midi file that uses one of the Drum instruments.
But of course the file runs out eventually and I have to loop it and
there is inevitably a jerk. Is there any way to not use a file at all
and just play a note over and over at a certain tempo? (I know I
could just skip midi altogether and play a tiny sound file over and
over, but I'd like to stick to midi for some other reasons.)
4) I know very little about midi. Is there anyone out there who could
help me with my project?
Thanks
Fred Moyer
_______________________________________________
use-revolution mailing list
[email protected]
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-revolution
