Filter plugins
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Plugins which filter the signal sent through them.
Neccessary for all your subtractive synthesis needs!
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Filter Plugin 1.0
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Inputs
Input
Cutoff CV
Emphasis CV
Outputs
Output
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The standard SpiralSynth filter, based on the (zxforms design).
Quite a meaty sound - low pass only, nice for bass modulations.
With variable emphasis/cutoff CV's.
It's also pretty fast, and well tested in SpiralSynth.
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MoogFilter Plugin 1.0
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Inputs
Input
Cutoff CV
Emphasis CV
Outputs
Lowpass
Bandpass
Highpass
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Classic moog filter. Very different sound to the other filters,
needless to say, very squelchy. As well as lowpass, band and high pass
are simultaneously calculated too. The emphasis can be
pushed into self oscillation (careful of the speakers). In this way,
it can be used to generate sinewave oscillations.
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SVF Plugin 1.0
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Inputs
Input
Cutoff CV
Emphasis CV
Outputs
Lowpass
Bandpass
Highpass
Notch
Peaking
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A State Variable Filter. First thing to say is, it's a bit
broken. Seems to generate glitchy noise when the cutoff is
modulated. Possibly a range bug on the cutoff too. On the
other hand, I like some of the noises it seems to make, so
it's here anyway (I'll fix it some day).
Works pretty well at band,high and peaking useful for creating
some different sounds.
Note: Comes with a reset button, so if you break it pushing the
emphasis up too high, you can reset the cooeficients
(which fixes it).
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Filter plugins 