[PD-dev] [ pure-data-Bugs-2773230 ] abstract creation audio engine

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Mon Apr 20 12:02:29 CEST 2009

Bugs item #2773230, was opened at 2009-04-18 22:26
Message generated for change (Comment added) made by reduzent
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Category: puredata
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Miller Puckette (millerpuckette)
Summary: abstract creation audio engine

Initial Comment:
I am using Pd version 0.40.3-extended (in a Mac OS X 10.5), 

Pd audio engine does not start at abstract creation time. 

Here attached is an abstraction to illustrate this problem. When you open it in a "test.pd" window with an argument (say: 440) and initialize audio engine it will run the abstraction "sine.pd" which generate a sinewave of 440Hz. 

Now, if you  create a new one, with another argument, say "sine 550" it will NOT generate a new sinewave (together with the sine 440) UNTIL you select/deselect it or tun on/off the audio engine.


Contact: tutifornari at gail.com


Comment By: Roman Haefeli (reduzent)
Date: 2009-04-20 10:02

bug #2764566 in only apparent on linux with ALSA, right? i haven't
encountered the problem using jack. so i still suggest using the
dsp-off-and-on approach, since it is much faster than the other
workarounds, unless you are really on linux using ALSA.


Comment By: IOhannes m zmlnig (zmoelnig)
Date: 2009-04-19 08:36

confirmed on Pd-vanilla 0.42-4 and Pd-extended 0.40-3;

other workarounds to make it work:
  - create yet another dsp-object
  - connect any dsp object

turning on/off the dsp-engine is suboptimal as it triggers another bug
#2764566 (on linux and Pd-0.40)


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