[PD] FM problems

[matthijs at devdsp.net]

Great! I guess I should rewrite the patch to use that instead (and take
a closer look at exactly what is in that PD externals package ;) )

Thanks!

On Thu, Jul 17, 2003 at 10:43:44AM -0700, Matthew Allen wrote:
> [z~ 1] 
> 
> 
> z~ is an object from the zexy which I have used extensively in my FM patches
> for this reason. It allows you to define a delay in terms of samples not
> milliseconds. So the above object would delay the incoming signal by a
> single sample. This gives you much more predictable results than delaying
> the signal by a millisecond (441 samples) which at higher frequencys could
> be the entire period of your waveform.
> 
> m.
> 
> > -----Original Message-----
> > From: matthijs at devdsp.net [mailto:matthijs at devdsp.net]
> > Sent: Thursday, July 17, 2003 6:58 AM
> > To: pd-list at iem.kug.ac.at
> > Subject: [PD] FM problems
> > 
> > Hi list,
> > 
> > I was wondering if one of you could help me with a patch I'm working on:
> > 
> > The patch (see attachment) attempts to implement a phase oscillation
> > instrument with feedback. The output of a phasor~ (the carrier) is added
> > to the output of an osc~ (the modulator) and the combined result is fed
> > into a cos~ object.
> > 
> > This works perfectly.
> > 
> > However, when I try to feed the output of the cos~ object, multiplied by
> > some value between 0 and 1, back into the chain somewhere and turn on
> > audio processing, PD immediately segfaults ("Consistency check failed:
> > signal_free").
> > 
> > So I guess I can't do this. Can anyone explain which obvious mistake I'm
> > making here?
> > 
> > 
> > --
> > take care,
> > 
> > Matthijs de Jonge
> > http://devdsp.net - news and resources for computer musicians

-- 
take care,

Matthijs de Jonge
http://devdsp.net - news and resources for computer musicians