[PD] graph on parent problem?

Ivica Ico Bukvic ico at vt.edu
Sun Dec 9 23:53:15 CET 2012

Hi, I looked at your patch and it actually has nothing to do with the array
being displayed via gop but rather the VU meter. Namely, your patch reads
from the input and uses [env~] object to capture input values. What you
didn't do, however, is given env~ object's buffer size, and I think it may
default to some awfully small buffer size, so you are asking VU meter to
update gui possibly thousands of times per second. To fix this, simply do
env~ 16384 or some other power of 2 number and you will be fine. Checked
here, after doing this it works fine. You can also try to enable gop but
remove vu meter from it and I suspect it will run heck of a lot faster...

If ever in doubt, you can always run pd-l2ork (or pd) with -d 3 flag which
will output to console all the gui communication. I did this and found bunch
of calls with RCOVER in one of the tags and traced that to vumeter external.


On 12/09/2012 05:36 AM, Oded Ben-Tal wrote:
> hello,
> Here is the offending patch. playsample is the subpatch that seems to 
> be causing the problems. I turned off the graph on parent option. Let 
> me know if it works with the option turned on.
> (I am a bit reluctant to install 2 versions of Pd on my system. I did 
> it once, but because I'm not suffiecently  good as a sys admin things 
> got a bit messy for me...)
> Many thanks
> Oded
> ___________________________________________________
> Oded Ben-Tal
> http://ccrma.stanford.edu/~oded
> oded at ccrma.stanford.edu

Ivica Ico Bukvic, D.M.A
Composition, Music Technology
Director, DISIS Interactive Sound & Intermedia Studio Director, L2Ork Linux
Laptop Orchestra Head, ICAT IMPACT Studio Virginia Tech Department of Music
Blacksburg, VA 24061-0240
(540) 231-6139
(540) 231-5034 (fax)

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