Frap Tools Fumana
Dual 16-band all-analog spectral editor and vocoder
42 HP Eurorack module
FUMANA is a dual all-analog fixed filter bank featuring two arrays of 16 independent bandpass filters. The main array (48 dB/oct) processes audio while the modulation array (36 dB/oct) extracts 16 envelope followers for spectral transfer. Bands are split into odd (1,3,5...15) and even (2,4,6...16) groups with independent inputs and outputs, enabling dual 8-band processing, stereo spread, or full 16-band spectral editing. Four macro controls (Tilt, Peak/Notch, Center, Width) provide voltage-controllable global spectral shaping, and an Unvoiced section adds fricative/sibilant detail for vocoder applications.
Features
- Dual 16-band all-analog fixed filter bank
- 32 bandpass filters total: 16 main (48 dB/oct) + 16 modulation (36 dB/oct)
- 16 voltage-controllable VCA faders with individual CV inputs
- 16 envelope followers with independent outputs
- Spectral transfer (vocoding) via semi-normalled envelope followers to VCAs
- Parametric scanner with Peak/Notch, Center, and Width controls
- Global Tilt control for spectral balance shifting
- All four macro controls are voltage-controllable with attenuverters
- Odd/Even band splitting for dual 8-band processing or stereo spread
- Semi-normalled Main and Mod inputs (single cable feeds both odd and even)
- 16 pre-VCA individual band outputs
- Unvoiced section for fricative/sibilant reproduction during vocoding
Controls & Jacks (60)
- Peak/Notch CV Attenuverter
- Tilt CV In
- Width CV Attenuverter
- Tilt
- Tilt CV Attenuverter
- Band 5 Level
- Unvoiced Level
- Band 6 Level
- Mod Even Level
- E.F. Fall
- Band 3 Level
- Center CV Attenuverter
- Band 14 Level
- Main Even Level
- E.F. Rise
- Band 11 Level
- Peak/Notch
- Band 10 Level
- Band 12 Out
- Band 16 Out
- Band 7 Level
- Unvoiced In
- Band 9 Level
- Peak/Notch CV In
- Band 13 Level
- All Out
- Band 8 Level
- Band 16 E.F. Out
- Band 4 Level
- Mod Odd Level
- Band 11 Out
- Band 15 Out
- Mod Even In
- Band 2 Level
- Width
- Width CV In
- Band 15 E.F. Out
- Band 1 E.F. Out
- Center CV In
- Band 4 E.F. Out
- Band 4 Out
- Band 15 Level
- Band 8 Out
- Odd Out
- Band 12 Level
- Center
- Main Odd In
- Band 13 Out
- Even Out
- Band 11 E.F. Out
- Band 3 CV In
- Band 2 E.F. Out
- Mod Odd In
- Band 4 CV In
- Band 12 CV In
- Band 8 E.F. Out
- Band 16 CV In
- Band 10 E.F. Out
- Band 10 Out
- Band 7 Out
How-To Guides
- 16-Band Spectral Transfer
- Dual 8-Band Vocoder
- Animated Spectral Scanner
- Vocoder with Unvoiced Section
- Spectral Sidechain
Explore the interactive Fumana panel on BleepDex — tap any control to learn what it does.
