2hp/lpf
LPF
Four-pole, voltage-controlled OTA lowpass filter with 24 dB/oct slope, CV over resonance, and self-oscillation capable of 1V/oct sine VCO tracking across four octaves.341
Visualization filter_response
Capabilities 2
Jacks 4 — 3 in / 1 out
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (3) | |||
| FREQ CV | cv | -10V to 10V | Control voltage input for FREQ. Added to knob position and scaled by ATTEN. Tracks 1V/oct across four octaves.341 |
| INPUT | audio | — | 341 |
| RES CV | cv | -5V to 5V | Control voltage input for RES. Added to the knob position.341 |
| Outputs (1) | |||
| OUTPUT | audio | — | 341 |
Parameters 3
| Name | Type | Range | Behavior |
|---|---|---|---|
| ATTEN | knob | — | Attenuverter for the FREQ CV input. Far left accepts 0V to -10V; far right accepts 0V to 10V.341 |
| FREQ | knob | — | Sets the cutoff frequency of the filter. Also known as the corner frequency or -3dB down point.341 |
| RES | knob | — | Sets the resonance (Q) of the filter. When fully clockwise the filter self-oscillates, outputting a very pure sine tone whose frequency is set by FREQ.341 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [341]
- [342]