How It Works
Technical view
This core simply sums four band-pass stages with fixed gains while `focus` and `motion` move some of the band centers. There is no time modulation or envelope interaction in the current implementation, and the shared `rate` control is declared but inactive.
- Filter, Wah & Envelope
- band-pass filtering
- waveshaping / saturation
- delay processing
- oscillator / LFO modulation
- DC blocking
Signal Path
Compiled preview chain
Preview source: An internally generated picked-string phrase is widened to stereo with a 19-sample right-channel delay and slight left/right shelf-EQ offsets before it hits the filter core.
- 1internal picked-string demo phrase
- 2stereo spread with a short right-channel delay
- 3parallel four-band band-pass bank
- 4dry / wet mix
- 5DC blocker
- 6output gain trim
- 7final tanh limiter
Preview source
An internally generated picked-string phrase is widened to stereo with a 19-sample right-channel delay and slight left/right shelf-EQ offsets before it hits the filter core.
Effect core
Parallel four-band band-pass bank with static gains and no active time modulation.
Signal path
The static waveform and the live player both reflect this compiled signal chain.
- internal picked-string demo phrase
- stereo spread with a short right-channel delay
- parallel four-band band-pass bank
- dry / wet mix
- DC blocker
- output gain trim
- final tanh limiter
Controls that matter
These are the currently active controls detected in the FAUST source for this effect.
- mix: Blends the untouched stereo preview source with the filtered path after the effect core.
- output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
- focus: Moves the lower and mid-upper band-pass centers inside the parallel filter bank.
- motion: Moves the middle and upper band-pass centers inside the parallel filter bank.
- rate: Declared in the shared control set but unused in the current preview code.
Code-backed analysis
The generated description is tied to the active helper blocks and routing found in the current DSP.
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- filterCore
- phraseMono
- previewShiftSamples
Controls
Audible controls in this DSP
Blends the untouched stereo preview source with the filtered path after the effect core.
Lower settings preserve more dry attack and full-band tone; higher settings emphasize the filter treatment.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the filter behavior itself.
Moves the lower and mid-upper band-pass centers inside the parallel filter bank.
Rebalances which fixed bands dominate the result.
Moves the middle and upper band-pass centers inside the parallel filter bank.
Shifts the brighter resonant peaks higher or lower.
Declared in the shared control set but unused in the current preview code.
Changing it currently has no effect on the sound.
Analysis
Code-derived notes
Current implementation shares the same four-band static filter-bank core across Fixed Filter Bank and Resonator Bank, and the shared rate control is inactive.
Active blocks
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- filterCore
- phraseMono
- previewShiftSamples
- pickedVoice
- fund
- pickEnv
- ampEnv
- triggerAt
- maxDelaySamples
Inactive helpers
- synthVoice
- organVoice
- bellVoice
- softsat
- quantize
- combLP
- echoOnly
- diffuser
Warnings
No current warnings are attached to this effect.
Source
- library/filter-wah-envelope/fixed-filter-bank.dsp
- Output stage: DC blocker -> output gain trim -> final tanh limiter
- Library position: 78