SVF

Classic sounding multimode filter

This is a two stage multimode filter capable of high pass, low pass, band pass and notch output modes. All four outputs are available simultaneously. This is a new version of the filter in the Oakley ASV module and is based around the classic two pole state variable filter topology as used in a variety of vintage synths including the Oberheim SEM and OB-X.

The module has two audio inputs, each with its own mini level control, which are mixed together before being sent to the filter core. The mixer can be operated in either 'clean' or 'soft clip' modes. Clean mode will simply mix the signals together and feed them cleanly into the filter core. Soft clip mode will gently limit the maximum voltage output of the mixer rounding off the top and the bottom peaks of the audio signal. In soft clip mode the asymmetry control allows you to force the mixer's output harder into the negative soft clipping zone distorting the audio in an interesting way.

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