[PD] phasor to square

[Derek Holzer]

Hi Raul,

you will want to investigate the binary operations and mathematical 
operations for signals. In this case, you want to know when the 
[phasor~] reaches 1:

[==~]

and this will output a signal of 1 (= HIGH), otherwise a zero (= LOW). 
You can use [snapshot~] to covert this to a float. [avg~] is supposed to 
do this as well, but it doesn't do anything on my OSX  PD Extended-0.39 
installation.

Thomas Mayer's squarewave converter that he posted using [>~ 0.5] and 
[-~ 0.5] is a similar idea, giving you also HIGH and LOW values, but you 
might still need to convert to float for the next part.

Once the result of you binary operation is a float, you can use a 
counter-like structure to count the HI levels, and some other math 
operations to count (alternately 1,2 and 1). I don't have time to patch 
the whole thing myself, but hopefully you will see what I mean.

best,
d.

raul diaz wrote:
> Hi list!
> 
> I need to convert a phasor into a square wave in this way:
> 
> phasor:
> 
>       /       /      /       /       /      /
>     /  |    /  |    /  |    /  |    /  |    /  |
>   /    |  /    |  /    |  /    |  /    |  /    |
> /      |/      |/      |/      |/      |/      |
> 
> square (2:1):
> ________        _________        _
> |              |       |              |       |
> |              |       |              |       |
> |              |____|              |____|
> 
> 
> so, a relation HIGH:LOW holds a high or a low value (1 or 0) a indicate 
> number of cycles.
> I need this conversion in order to make a masking, so square doesn't 
> have to be an audio signal necessarily (could be a number upload each 
> phasor cycle).
> 
> What could be the best implementation for that scheme?
> 
> Saludos!
> 
> -- 
> Raul Diaz Poblete
> *************************
> raul.lete at gmail.com <mailto:raul.lete at gmail.com>
> Barcelona [Spain]
> 
> 
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-- 
derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista
---Oblique Strategy # 165:
"Use an old idea"