frap-tools/fumana
Fumana
Dual all-analog fixed filter bank with two arrays of 16 independent bandpass filters, per-band VCA faders with CV inputs, envelope followers for spectral transfer/vocoding, and macro spectral editing controls (Tilt, Peak/Notch, Center, Width).422
Capabilities 5
- Bandpass Filterbandpass-filter
- 422
- Fixed Filter Bankfixed-filter-bank
- Two arrays of 16 analog bandpass filters; main array uses 48 dB/oct (8th order) slope, modulation array uses 36 dB/oct (6th order) slope. Bands can be split into odd/even groups for dual 8-band processing.422
- Spectral Processingspectral-processing
- Processes audio through 16 parallel bandpass filters with per-band VCA control. Bands can be split into odd/even groups for independent or combined processing. Macro controls (Tilt, Scan) act across multiple bands simultaneously.422
- Stereo Processingstereo-processing
- 422
- Vocodervocoder
- Performs spectral transfer from modulator to carrier via 16 envelope followers; supports dual 8-band vocoding using odd/even bands independently; includes Unvoiced section for fricative/sibilant sounds.422
Jacks 17 — 11 in / 6 out
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (11) | |||
| Center CV Input | cv | -10V to 10V | 422 |
| Main Even Input | audio | — | 422 |
| Main Odd Input | audio | — | 422 |
| Mod Even Input | audio | — | 422 |
| Mod Odd Input | audio | — | 422 |
| Peak/Notch CV Input | cv | -10V to 10V | 422 |
| Tilt CV Input | cv | -10V to 10V | 422 |
| Tilt CV Input Attenuverter | mixed | — | 422 |
| Unvoiced Input | audio | — | Audio input for unvoiced (fricative/sibilant) sounds. Signal is filtered roughly between 3000 and 5500 Hz and summed to main signal when modulator hits bands 14 and 15. Recommended sources: white or pink noise.422 |
| VCA CV Inputs | cv | -10V to 10V | 16 individual CV inputs (one per band) below the faders; semi-normalled to envelope follower outputs. Accept bipolar or unipolar signals, even at audio rate up to ~1000 Hz (after which a lowpass filter is applied).422 |
| Width CV Input | cv | -10V to 10V | 422 |
| Outputs (6) | |||
| All Envelope Followers Output | cv | — | 422 |
| All Output | audio | — | 422 |
| Even Output | audio | — | 422 |
| Individual Band Outputs | audio | — | 16 individual band outputs for the main filter array. Using them does not affect the respective band's presence in the Odd/Even/All outputs.422 |
| Individual Envelope Followers Outputs | cv | — | 422 |
| Odd Output | audio | — | 422 |
Parameters 15
| Name | Type | Range | Behavior |
|---|---|---|---|
| Center | knob | -10V – 10V | Sets the center band position for the parametric scan. Fully CCW and fully CW = no band emphasized. Rotating CW shifts the emphasis center from band 1 to band 16.422 |
| Envelope Followers Fall | knob | — | Controls the release time of the envelope followers. Leftmost position is fastest; rotating CW results in slower envelopes. Non-linear response giving more precision over fast times.422 |
| Envelope Followers Rise | knob | — | Controls the attack time of the envelope followers. Leftmost position is fastest; rotating CW results in slower envelopes. Non-linear response giving more precision over fast times.422 |
| Even Output Phase | switch | — | 422 |
| Individual Band VCA | menu_setting | -10V – 10V | 422 |
| Main Even Level | knob | — | 422 |
| Main Odd Level | knob | — | 422 |
| Mod Even Level | knob | — | 422 |
| Mod Odd Level | knob | — | 422 |
| Odd Output Phase | switch | — | 422 |
| Peak/Notch | knob | -10V – 10V | Sets the amount of emphasis or attenuation of the parametric scan. Center = no emphasis; CW = positive gain (peak); CCW = negative gain (notch-like).422 |
| Tilt | knob | -10V – 10V | Fixed fulcrum between bands 8 and 9. CCW emphasizes bands 1-8 and attenuates bands 9-16; CW emphasizes bands 9-16 and attenuates 1-8. Center position has no effect.422 |
| Unvoiced Level | knob | — | 422 |
| VCA Faders | fader | — | 16 individual faders, one per band. In lowest position the VCA is closed; raise to increase selected band amplitude. The blue LEDs on each fader visually display the amplitude of the respective band after all modulations.422 |
| Width | knob | -10V – 10V | Sets the width of the parametric scan emphasis on either side of the Center position, from 0 to all 16 bands. Rotating fully CCW bypasses the parametric scanner.422 |
Firmware history 0 versions
No firmware history recorded.
References 2
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[422]
Frap Tools MANUALONE (multi-module manual; Fumana section)manual● verified 2026-05-16
- [423]