[PD] phasor to square

[raul diaz]

Hi Roman!

I'm sorry for my lack of information...

I'm making a pulsar granular synthesis patch based on Curtis Roads's
Microsound ideas using a patch from nullpointer (
http://www.nullpointer.co.uk/-/pd.htm).
So, the phasor is my pulsar frequency reference, and I want to mask the
output of pulsar granular synthesizer.
In this way a 1:3 mask will allow to hear 1 of each 4 pulsar particles.
I don't really need a square wave, I prefer to obtain a number (0/1) each
phasor cycle to multiply with pulsar granular synthesize output.
But, maybe your idea could work, using directly a masked phasor to
synthesize pulsar particles, instead of mask synthesized pulsar particles.

I will try this way, but anyway i'm curious about [avg~] behaviour. What's
wrong on my "phasor-cycles-counter" patch?

Thanks for your suggestions!

Saludos!


2008/1/20, Roman Haefeli <reduzierer at yahoo.de>:
>
> hi raul
>
> i am still unsure about your initial problem. probably the solution is
> quite simple, but maybe you need to provide some more information. would
> you like to use the rectangular wave to mask the phasor wave? so that
> your resulting wave would look like this  :
>
>   /|  /|      /|  /|      /|  /|      /|  /|      /|  /|
> / | / |     / | / |     / | / |     / | / |     / | / |
> /  |/  |____/  |/  |____/  |/  |____/  |/  |____/  |/  |____
>
> if your goal is  to synthesize some customized waveform, it might be
> easier to do it using [vline~] (have a look at the help patch). [vline~]
> lets you practically compose any waveform, that consists only of
> straight ramps (it might still be possible with curves, but certainly it
> would be trickier).
>
> roman
>
>
> On Sun, 2008-01-20 at 14:55 +0100, raul diaz wrote:
> > Thanks a lot for your suggestions!
> >
> > I tried to make the mathematical comparation for phasor with [==~] and
> > [avg~] and then a counter in order to count phasor cycles.
> > But it doesn't work, it only count one. Did I make something wrong?
> >
> > Attached is the example patch.
> >
> >
> >
> > 2008/1/20, Roman Haefeli <reduzierer at yahoo.de>:
> >         On Sun, 2008-01-20 at 13:50 +0100, raul diaz wrote:
> >         > Hi list!
> >         >
> >         > I need to convert a phasor into a square wave in this way:
> >         >
> >         > phasor:
> >         >
> >         >       /       /      /       /       /      /
> >         >     /  |    /  |    /  |    /  |    /  |    /  |
> >         >   /    |  /    |  /    |  /    |  /    |  /    |
> >         > /      |/      |/      |/      |/      |/      |
> >         >
> >         > square (2:1):
> >         > ________        _________        _
> >         > |              |       |              |       |
> >         > |              |       |              |       |
> >         > |              |____|              |____|
> >         >
> >         hi raul
> >
> >         when doing ascii art, the font and formatting you are using is
> >         critical
> >         for the correct appearance. in order to display your aa
> >         correctly in
> >         other people's email-client as well, choose 'plain text'
> >         instead of
> >         'html' format and a monospace font type while typing.
> >
> >
> >         to your problem:
> >
> >         you could divide the phasor frequency by three, so that one
> >         period of
> >         the phasor matches one period of your desired rectangular
> >         wave. if i
> >         understand your drawing correctly, you want to achieve a
> >         rectangular
> >         wave whith a 66% on-phase (and 33% off-phase). have a look at
> >         millers
> >         example patch 3.audio.examples/J03.pulse.width.mod.pd to get
> >         an idea how
> >         to convert a phasoor into a rectangular wave with specified
> >         on-phase.
> >
> >         roman
> >
> >
> >
> >
> >
> >         ___________________________________________________________
> >         Telefonate ohne weitere Kosten vom PC zum PC:
> >         http://messenger.yahoo.de
> >
> >
> >
> >
> > --
> > Raul Diaz Poblete
> > *************************
> > raul.lete at gmail.com
> > Barcelona [Spain]
> > _______________________________________________
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>
>
>
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>


-- 
Raul Diaz Poblete
*************************
raul.lete at gmail.com
Barcelona [Spain]
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