Tangible Waves - SVFILTER

This filter module is a classic state variable filter.

Two signal inputs for different signal levels control the "drive" of the module.

Compared to the wasp filter this filter has a significant self resonance and also a very quick response to cutofffrequency changes.

Module power consumption: 2 mA

Inputs

• IN H - main audio signal
• IN L - optional additional audio signal which will be mixed together with the main signal at a lower level before going through the filter
• CV 1 - control voltage for cutoff frequency, this will affect all three filter curves
• CV 2 - control voltage for cutoff frequency, this will also affect all three filter curves

Outputs

• LP - low pass filter output
• BP - band pass filter output
• HP - high pass filter output
• BUS CV - this sits below the input jacks on the left side and will output CV pitch from a connected MIDI device
• BUS CTRL - this sits below the input jacks on the left side and will output the MIDI control message from a connected MIDI device (CH1 - CC20)

Controls

• FREQ Knob - cuttoff frequency
• CV 1 Knob - control voltage attenuator
• RESONANCE Knob

Patch Suggestions

Here's a patch for a low pass gate:

• Any signal -> SVFILTER (IN L)
• SVFILTER (LP) -> VCA (IN1)
• ENV (OUT) -> SVFILTER (CV1)
• ENV (OUT) -> VCA (CV1)