steady-state-fate/stereo-dipole
Stereo Dipole
Two individual dual peak multi-mode VCFs with dedicated controls for Cutoff, Resonance and Spread. A standard 12db/Oct output with selectable HP/BP/LP called POLE and a Dual Peak output with selectable HP/BP/LP called DIPOLE, per channel.816
Visualization filter_response
Capabilities 3
- Multimode Filtermultimode-filter
- Four VCF cores (two per channel) with selectable HP/BP/LP response on both POLE (single-peak) and DIPOLE (dual-peak) outputs, plus a DIPOLE AB quad-peak mono output. Channels routable in serial or parallel.816
- Sine Wave VCO/LFOsine-vco-lfo
- Self-oscillates at high resonance across entire bandwidth (20+ octaves), functioning as a single, dual, or quad sine wave VCO/LFO.816
- Vcfvcf
- 816
Jacks 18 (13 in / 5 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (13) | |||
| FM-A | cv | — | CV input for channel A FM (frequency modulation). Controls both FREQ and SPREAD cutoff frequency. Bipolar attenuator: center is off, left is max inverted, right is max positive.816 |
| FM-B | cv | — | CV input for channel B FM (frequency modulation). Controls both FREQ and SPREAD cutoff frequency. Bipolar attenuator.816 |
| Input A | mixed | — | DC-coupled audio/CV input for channel A. Normalized into Input B.816 |
| Input B | mixed | — | DC-coupled audio/CV input for channel B. Receives normalization from Input A.816 |
| RES-A | cv | — | CV input for channel A resonance. Controls both POLE and DIPOLE resonance level. Unipolar attenuator.816 |
| RES-B | cv | — | CV input for channel B resonance. Controls both POLE and DIPOLE resonance level. Unipolar attenuator.816 |
| SPRD-A | cv | — | CV input for channel A SPREAD (secondary cutoff frequency). No attenuator provided, designed for accurate 1V/OCT tracking of the secondary filter peak.816 |
| SPRD-B | cv | — | CV input for channel B SPREAD (secondary cutoff frequency). No attenuator, designed for accurate 1V/OCT tracking of the secondary filter peak.816 |
| ST-FM | cv | — | Stereo FM CV input summed with FM-A and FM-B. A unipolar master attenuator controls the level going into both filter channels.816 |
| ST-RES | cv | — | Stereo resonance CV input summed with RES-A and RES-B. A unipolar master attenuator controls the level going into both filter channels.816 |
| V/OCT | cv | — | Stereo 1V/OCT input controlling pitch tracking on all four filters simultaneously. Sums with per-channel V/OCT-A and V/OCT-B inputs.816 |
| V/OCT-A | cv | — | 1V/OCT pitch tracking CV input for channel A, controlling both POLE and DIPOLE filter cutoff.816 |
| V/OCT-B | cv | — | 1V/OCT pitch tracking CV input for channel B, controlling both POLE and DIPOLE filter cutoff.816 |
| Outputs (5) | |||
| DIPOLE AB | audio | — | Quad-peak monophonic output combining all four filter cores (both POLE and DIPOLE outputs from channels A and B). Can be routed in serial or parallel.816 |
| DIPOLE-A | audio | — | Channel A dual-peak filter output. Filter type (HP/BP/LP) selectable via switch above the output. Can be routed in serial or parallel with POLE-A.816 |
| DIPOLE-B | audio | — | Channel B dual-peak filter output. Filter type (HP/BP/LP) selectable via switch above the output. Can be routed in serial or parallel with POLE-B.816 |
| POLE-A | audio | — | Channel A single-peak 12dB/oct filter output. Filter type (HP/BP/LP) selectable via switch above the output.816 |
| POLE-B | audio | — | Channel B single-peak 12dB/oct filter output. Filter type (HP/BP/LP) selectable via switch above the output.816 |
Parameters 18
| Name | Type | Range | Behavior |
|---|---|---|---|
| DIPOLE Switch A | switch | — | Selects filter response (HP, BP, or LP) for the DIPOLE-A output on channel A.816 |
| DIPOLE Switch B | switch | — | Selects filter response (HP, BP, or LP) for the DIPOLE-B output on channel B.816 |
| DRIVE-A | knob | — | Pre-filter input drive for channel A. At minimum, signal passes without gain. In light use alters spectra and boosts signals. Heavy use pushes into soft then hard clipping, adding harmonic content useful for filtering sine/triangle waves.816 |
| DRIVE-B | knob | — | Pre-filter input drive for channel B. At minimum, signal passes without gain. In light use alters spectra and boosts signals. Heavy use pushes into soft then hard clipping, adding harmonic content.816 |
| FM LVL | knob | — | Bipolar attenuator controlling the combined sum of ST-FM and the channel-specific FM CV inputs.816 |
| FREQ-A | knob | — | Controls the cutoff frequency of both the primary (POLE) and secondary (DIPOLE) VCF for channel A.816 |
| FREQ-B | knob | — | Controls the cutoff frequency of both the primary (POLE) and secondary (DIPOLE) VCF for channel B.816 |
| POLE Switch A | switch | — | Selects filter response (HP, BP, or LP) for the POLE-A output on channel A.816 |
| POLE Switch B | switch | — | Selects filter response (HP, BP, or LP) for the POLE-B output on channel B.816 |
| RCV LVL | knob | — | Unipolar master attenuator for ST-RES going into both filter channels. Summed with channel-specific RES CV inputs post-attenuators.816 |
| RES-A | knob | — | Controls resonance for both POLE and DIPOLE filter peaks on channel A. Capable of self-oscillation across entire bandwidth.816 |
| RES-B | knob | — | Controls resonance for both POLE and DIPOLE filter peaks on channel B. Capable of self-oscillation across entire bandwidth.816 |
| Serial/Parallel Switch A | switch | — | Selects serial or parallel routing of POLE and DIPOLE cores for channel A. Serial enables steeper slopes (e.g. 24dB/oct); parallel enables notch and other combinations.816 |
| Serial/Parallel Switch B | switch | — | Selects serial or parallel routing of POLE and DIPOLE cores for channel B.816 |
| SPREAD-A | knob | -5octave – 5octave | Sets the secondary peak cutoff frequency offset for channel A. Center position matches the primary cutoff; turning CCW or CW offsets secondary peak by up to +/-5 octaves.816 |
| SPREAD-B | knob | -5octave – 5octave | Sets the secondary peak cutoff frequency offset for channel B. Center position matches the primary cutoff; turning CCW or CW offsets secondary peak by up to +/-5 octaves.816 |
| STEREO FREQ | knob | -10octave – 10octave | Controls cutoff frequency of all four multi-mode filters simultaneously. Range is approximately +/-10 octaves. Total usable range approximately 17 octaves, from ~0.3Hz to ~50kHz.816 |
| STEREO RES | knob | — | Bipolar control for resonance of all four filters simultaneously. Can increase or reduce overall resonance regardless of per-channel RES settings. Default/neutral position is center.816 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [816]
- [817]