[PD] fx chaining without glitch

[Andy Farnell]

Has anyone tried a VCS3 style crosspoint patch in Pd,
but then replace the cross switches with quick crossfaders?


On Fri, 21 Oct 2011 08:55:22 +0200
Roman Haefeli <reduzent at gmail.com> wrote:

> Hi Pat
> 
> 
> It's logical problem. You cannot have the signal path having both
> possible orders at the same time. If you want to switch the order, you
> need to re-create the path. This could be done by dynamically
> disconnecting wires and re-creating them in the other order. However,
> this causes recompilation of the DSP graph. Certainly you cannot do it
> with [send~]/[receive~] pairs. There will alway one pair that introduces
> a block size delay.
> 
> They only idea I can come up with is not very scalable. You create both
> possible paths in parallel and switch~ them on and off as needed.
> 
> However, this only guarantees not to create any DSP hickups. Turning on
> and off instantaneously causes some effects to create glitches
> (non-continuous signal). 
> 
> Roman
> 
> 
> 
> On Thu, 2011-10-20 at 21:44 -0400, patrick wrote:
> > hi everyone,
> > 
> > i would like to make a patch with multiple fx~ _but_ is it possible to
> > chain the fx~ and change the order without a single glitch in the dsp.
> > as an example:
> > 
> > [adc~]
> > |
> > [reverb~]
> > |
> > [distortion~]
> > |
> > [dac~]
> > 
> > now pressing a bang and automagically:
> > 
> > [adc~]
> > |
> > [distortion~]
> > |
> > [reverb~]
> > |
> > [dac~]
> > 
> > is it possible in pd?
> > thanks,
> > pat
> > 
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> 
> 
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-- 
Andy Farnell <padawan12 at obiwannabe.co.uk>