[PD] square wave object?

Paris Treantafeles paris at parisgraphics.com
Sat Apr 9 15:14:47 CEST 2005

thanks for the ideas.
i will try out the first three today.
later when i install linux, i will look at the LADSPA plugins.


On Saturday, April 9, 2005, at 02:46  AM, ClaudiusMaximus wrote:

> Paris Treantafeles wrote:
>> i see that PD has cosine and sawtooth objects.
>> is there a square wave object?
>> or do you use tables to create them?
> Some methods:
> 1: You can create a rectangular wave by subtracting two sawtooth waves 
> that have different phases, vary the phase difference to change the 
> proportion of high and low in the wave, at a particular phase you have 
> a square wave.
> 2: You can [clip~] a cosine wave, various amounts of pre-clip 
> amplification change the "hardness" of the square wave.  The Zexy 
> library also has [>~].
> 3. You can use tables with [tabread~] or [tabread4~] (there is also a 
> table osc but I've forgotten its exact name).
> Note:
> phasor~ is not band-limited, which means aliasing distortion can be 
> audible, if you're using it as an audio oscillators.  I think there 
> are band-limited oscillator LADSPA plugins if you use Linux.
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