Re: [PD] phasor to square

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@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@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





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