[PD] Anybody in Rome?

David Sabine dave at davesabine.com
Mon Aug 5 20:03:46 CEST 2002


I was wondering if anybody on this list is IN or NEAR Rome?

If so, please let me know.  A choreographer in Rome contacted me via my
website with questions about a MIDI controlled 'Intelligent Stage'.

I'd like to help the project, but I'm in Canada.  Hence, the distance might
make the collaboration very difficult - but if there's a PD guru near Rome
then I'll refer the choreographer to you.

Dave Sabine

----- Original Message -----
From: "Miller Puckette" <mpuckett at man104-1.ucsd.edu>
To: "David Sabine" <dave at davesabine.com>
Cc: <pd-list at iem.kug.ac.at>
Sent: Thursday, August 01, 2002 8:48 PM
Subject: Re: [PD] Turn off env~?

> The VU meter is probably taking many times as much CPU timeas the env~, so
> a spigot at env~'s output would probably be good enough; but you can even
> turn off the env~ itself by putting it in a subpatch and using "switch~"
> turn the subpatch off.
> cheers
> Miller
> On Thu, Aug 01, 2002 at 08:36:09PM -0600, David Sabine wrote:
> > Hello all,
> >
> > I assume that if env~ exists in a patch, it is active whether or not a
signal is passing through it.  This means that env~ is using CPU even though
it's input might be "zero"?
> >
> > Is there some method of turning off env~ or perhaps change its window
size dynamically so that it's not taking up so much CPU?
> >
> > For example, I'm using [env~ 8192] to send a level to VU meters.  I've
then created a spigot-like object that will cut the signal going to that
[env~] in an attempt to save CPU power so that PD doesn't have to
continually update the VU meters.  Like this:
> >
> > [osc~] > [*~ 1/0 (depending on toggle)] > [env~ 8192] > [- 100] > [Vu
> >
> > However, even if the [osc~] is multiplied by "zero", CPU usage is still
too high because [env~ 8192] is computing all the time (zero x whatever?
over and over 5 times per second).  Is there some method of actually
'turning-off' the [env~] or perhaps change its windows size to [env~ 131072]
for example when I don't need to see the VU?
> >
> > Thanks
> > Dave S

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