There's a macro on quartzcompositions.com called SLSpeed which does
what you are looking for via JavaScript.
It uses feedback as you describe. There was also a post to the list
awhile back w/ another variant on the theme.
.xX
On May 8, 2006, at 3:36 AM, Oliver Bown wrote:
Hello all,
I'd like to build a variable rate timing macro in QC, the purpose
of which would be to be able to control the playback rate of a
movie clip from MIDI in realtime. The dead simple method is to
connect "patch time" to "math" so that you can multiply by some
scale factor, and then send this value to "image with movie". The
problem with this is that realtime rate changes also affect the
instantaneous position of the movie, so you don't get smooth
changes in the movie playback rate. To get smooth changes I would
have to create a counter object where I could change the increment
rate of the counter, instead of scaling its output. To my surprise
I cannot find a way to achieve this effect in QC. If there was a
simple way to connect outputs from math objects back into their
inputs with control over timing this would make the job trivial.
Can anyone suggest a simple (or complicated) way to achieve this?
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