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Developers > OSC
SH-xx
 
This
SH-xx Filter module for Synthedit is a very powerful
Filter. This filter is accurate and has the same
filter sound and resonance as the original one.
I've not found any synth that has a real
accurate model of a real natural pure analog
filter. The problem comes from the resonance. In
virtual synths the resonance is fixed, in the
SH-09, it is a tuned harmonic, that sounds close
to a sine wave. It is so musical that you can
play with it as if it was a second OSC! Without
this possibility, and without a very stable
resonance sound, you can't have the same power
and feeling as if you were using a vintage gear.
The Nikko SH-xx has a perfect resonance, and
this filter is a true duplication of my SH-xx
filter...
Features :
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Tuned true
resonance with no artifacts.
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Natural
internal distortion and clipping.
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Gain for each
pole can be set individually.
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Global gain,
you can disable self-oscillation or create
spectacular crazy fx.
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Hi-pass has
been added to the original design for even
more possibilities.
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CPU friendly.
The filter go in bypass mode automatically
if no signal comes.
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Module
Name |
Module
description |
Download |
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- Filter SH-xx
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Real vintage emulation of
the SH-xx crazy filter, plus extra
additions to the basic concept. Stable
resonance and self oscillation. |


Download a free working
demo of the SH-xx pack |
How does
it work?
This
filter consume some CPU, but that's the
price to pay to have a really accurate
filter. In fact to create the same sound of
the SH-xx filter, I need to run 2 filters
with oversampling. The 2 biquad 24db filters
are running at the same time with the same
parameters. But the first one has NO
feedback. The second has feedback and its
feedback is clipped to stay <1.0.
At the end
I add the two filter so I have both the
resonance and the filtered sound. The
resonance is stable because it is clipped.
You can play with the demo to se by
yourself.
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