[PD] unchange detection

Frank Barknecht fbar at footils.org
Tue Aug 17 17:07:37 CEST 2010


On Tue, Aug 17, 2010 at 10:00:05AM +0200, IOhannes m zmoelnig wrote:
> On 2010-08-17 09:57, Marek Vanbykow wrote:
> > Could i find some kind of object in pd who outputs a single bang when it
> > recieves nothing ?
> > Thanks for your help.
> [until]
> but you have to start the detection by sending it a [bang( once.

Took me a while to get this. :)

But although it answered the question, maybe Marek was instead looking for a
way to output a bang after nothing has happened for a while, like a kind of
activity meter. At least that's a common need on many occasions.

For this, [delay] is a great object because it resets the scheduled delay
whenever it receives a new bang. A simple activity monitor could look like

 [r is_there_something_happing????]
 [delay 1000]
 [s nothing_happened_during_the_last_second!]

 Frank Barknecht            Do You RjDj.me?          _ ______footils.org__

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