In an analog synth the square wave has some distortion to it: the rise
is not instantaneous and there is some overshoot of the peak too. Over
the years this was minimized by using high slew rate amp circuits and
the like so an old Moog pulse wave is less ideal in shape than a new one.
For a digital square wave you would want to use band limiting to avoid
alias artifacts which are quite severe for a square or sawtooth wave.
As the frequency goes higher both of those waves will begin to look more
like sine waves as the partials are filtered out. Pretty much every
commercial digital synth and plugin uses anti-aliased waveforms.
On Mon, Feb 6, 2012 at 8:31 AM, Pierre Massat <
pimassat@gmail.com
<mailto:
pimassat@gmail.com>> wrote:
Dear List,
I need a square wave to use as an LFO in a ring mod patch. Though i
could simply use [expr~ $v1>0.5], I m wondering if I could get a
smoother square wave. I tried to use a bandlimited square wave, but
I don't have enough harmonics and the top of the wave isn't flat
enough. Incidentally, what do analog square waves from old synths
look like? Anyway, I think i want a square wave with no jumps
between 0 and 1.
Cheers!
Pierre.
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