steady-state-fate/mmf
MMF
12dB/octave state variable multi-mode filter in 4HP with simultaneous LP, BP, and HP outputs, voltage-controllable cutoff and resonance, 1V/oct tracking, and a PING input that generates a fast-decay vactrol-like envelope without a vactrol.345
Visualization filter_response
Capabilities 4
- 1V/Oct Trackingv-oct-tracking
- Dedicated 1V/oct input for pitch tracking the filter cutoff; performance is good but not perfect for VCO use.345
- Multimode Filtermultimode-filter
- Simultaneous LP, BP, and HP outputs from a 12dB/oct state variable filter topology.345
- Self-Oscillationself-oscillation
- Filter self-oscillates into a sine wave at maximum resonance.345
- Vcfvcf
Jacks 8 (5 in / 3 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (5) | |||
| 1V/OCT | cv | — | 1V/octave CV input for pitch-tracking the filter cutoff. Performance is good but not perfect for VCO use.345 |
| FM CV INPUT | cv | — | CV input for frequency modulation of the filter cutoff. Attenuated and polarized by the FM attenuverter knob.345 |
| PING | gate | — | Simulated vactrol ping input. A trigger or gate signal pings the filter with a fast-decay envelope reminiscent of a vactrol response. A rear-panel switch selects whether PING affects the filter directly or through the FM circuitry.345 |
| RESONANCE CV INPUT | cv | — | CV input that controls the resonance level.345 |
| SIGNAL INPUT | audio | — | Audio input to the state variable filter.345 |
| Outputs (3) | |||
| BP | audio | — | Band pass filter response output.345 |
| HP | audio | — | High pass filter response output.345 |
| LP | audio | — | Low pass filter response output.345 |
Parameters 3
| Name | Type | Range | Behavior |
|---|---|---|---|
| CUTOFF | knob | — | Sets the cutoff frequency of the state variable filter. A cutoff level LED indicates the current frequency based on the manual control and any applied CV at the FM or PING inputs.345 |
| FREQUENCY MOD ATTENUATOR | knob | — | Attenuverter that controls the level and polarity of CV signals patched into the FM input.345 |
| RESONANCE | knob | — | Adjusts the resonance level. At maximum, the filter self-oscillates into a sine wave.345 |
Firmware history 0 versions
No firmware history recorded.
References 2
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[345]
Steady State Fate / WMD MMF User Manualmanual● verified 2026-05-14
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[346]
WMD-hosted MMF product page (SSF × WMD collaboration)product_page⚠ verified 2026-05-14 · manufacturer changed since last verified