ASM317 - State-Variable Filter

State-variable VCF

The VCF is a tone-shaping module which processes the `raw' output of the VCOs to provide a wide variety of different tone colours and amplitude dynamics.

The VCF has four filter functions. A low-pass filter with a rolloff of -12dB per octave above the turnover point, a highpass filter with a rolloff of -12dB per octave below the the turnover point, a bandpass filter with variable Q and minimum slope of -6dB per octave on either side of the centre frequency, and a notch filter. The turnover point - or centre frequency in the case of the band filters - is the same for all four filter functions, and can be varied by the application of a control voltage.

The VCF is a state-variable design with an exponential voltage-to-frequency response set at 1Volt/Octave.

The unit has the following features:-

CV Inputs (2)
Outputs for Highpass, Bandpass, Lowpass and Notch

  • 23 mA +12V
  • 23 mA -12V
  • 0 mA 5V
  • 65 mm deep

Available as an assembled Module and as a DIY project.

This Module is a prototype or in a concept phase.

$196 Price in €
14 HP Filter
submitted Oct 28th 2017, 09:31 by WidgetOz | last Change Feb 14th 2018, 00:32 by Lugia