[PD] Strange behavior between [phasor~] and [creb/blosc~]

Ingo ingo at miamiwave.com
Tue Nov 23 21:45:47 CET 2010


Yes, Derek,

that formula makes absolutely sense. The funny thing is that the level with
the - 0.5 was identical with [creb/blosc~]. It should have been half the
level. Strange!

Ingo


> -----Ursprüngliche Nachricht-----
> Von: Derek Holzer [mailto:derek at umatic.nl]
> Gesendet: Dienstag, 23. November 2010 19:08
> An: Ingo
> Cc: pd-list at iem.at
> Betreff: Re: AW: [PD] Strange behavior between [phasor~] and [creb/blosc~]
> 
> Have a look here:
> 
> http://en.flossmanuals.net/PureData/DCOffset
> 
> My basic formula is
> 
> [*~ 2]
> |
> [-~ 1]
> 
> Best!
> D.
> 
> On 11/23/10 3:18 PM, Ingo wrote:
> > Hi Derek,
> >
> > that's it !!!  I just subtracted 0.5 from the [phasor~] outlet and now
it
> > behaves as expected. Thank you!
> >
> > Now I have to find all the [phasor~] objects in my patches und change it
> > there. Using [blosc~] is just too expensive for simply producing some
slight
> > "dirt" modulations.
> >
> > Ingo
> >
> >
> >> -----Ursprüngliche Nachricht-----
> >> Von: pd-list-bounces at iem.at [mailto:pd-list-bounces at iem.at] Im Auftrag
von
> > Derek
> >> Holzer
> >> Gesendet: Dienstag, 23. November 2010 14:49
> >> An: pd-list at iem.at
> >> Betreff: Re: [PD] Strange behavior between [phasor~] and [creb/blosc~]
> >>
> >> Did you try graphing the output of the combined [phasor~] objects? To
> >> me, it seems likely that the lack of a zero-crossing in the [phasor~]
> >> waveform would create a large amount of DC offset, and perhaps that is
> >> what you are hearing. [creb/blosc~], [osc~] and pretty much any other
> >> audio waveform generator all have mostly equal amounts of positive and
> >> negative energy in their waveforms. Only [phasor~] is the weird
> >> exception and wasn't even designed to be used as signal source anyways.
> >> I'm quite sure it was mainly intended for use in driving [tabread~]
> > objects.
> >>
> >> D.
> >>
> >> On 11/23/10 2:40 PM, Ingo wrote:
> >>
> >>> Do subpatches with several [phasor~] used as a audiosignals produce a
> >>> different result as intended without summing up in total over "1".
> >>
> >> --
> >> ::: derek holzer ::: http://macumbista.net :::
> >> ---Oblique Strategy # 113:
> >> "Make a blank valuable by putting it in an exquisite frame"
> >>
> >> _______________________________________________
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> >
> >
> 
> --
> ::: derek holzer ::: http://macumbista.net :::
> ---Oblique Strategy # 101:
> "It is simply a matter of work"




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