[chuck-users] coordinating rhythmic timing with unpredictable OSC events

Tomtom tomtom at herbesfolles.org
Thu May 3 11:08:19 EDT 2012

I think your problem can be solved with a technique along the following
trick :

60::second / bpm => dur tick;
tick - (now % tick) => now;

if you add this at the start of your script, it will wait just long
enough to start on the next beat. that way, you can have several shreds
in perfect timing, even though they are triggered from an external

hope this helps !


On Thu, May 03, 2012 at 07:54:01AM -0700, [chriswicks] wrote:
> Hello all!  I'm quite new to ChucK, and I have a question concerning rhythmic
> timing.  I've got a program that I'm working on that accepts OSC events being
> sent from a C++ application.  Now, the program chugs along, it's quite rhytmic,
> and I'd like to trigger melodic shreds based on values sent through OSC.  No
> problem doing that.  My problem comes from the fact that the C++ app isn't in
> sync with the ChucK VM, so the times at which it chooses to send data are
> pretty much never in sync with everything else that's going on, so the melodic
> shred is triggered but is not lined up rhythmically with everything else that's
> going on.
> Is there any way to hack it so that it waits to add the shred until it's lined
> up with everything else (quantized, so to speak).  I'm not sure if I'm properly
> expressing the problem, so let me know if there's some way I can further
> clarify.
> Thanks very much!
> -crwicks

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