Hi Derek!
Your approch is exactly what I need!
I didn't know the [==~] and [avg~] objects, but they make exactly what I want.
Thanks for the suggestion!
Saludos!
2008/1/20, Derek Holzer derek@umatic.nl:
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@gmail.com mailto:raul.lete@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"