How It Works
Technical view
The current flanger family uses two very short modulated delays, roughly 0.7 to 0.9 ms before depth modulation, and adds them back to the dry signal for comb-like sweep. `depth` sets the delay excursion, `rate` drives the offset LFOs, and `tone` increases the delayed branch contribution, so these variants currently differ by naming and defaults more than topology.
- Chorus, Phaser, Flanger & Motion
- 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 modulation core.
- 1internal picked-string demo phrase
- 2stereo spread with a short right-channel delay
- 3dual sub-millisecond modulated delays
- 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 modulation core.
Effect core
Stereo sub-millisecond flanger built from dual modulated delay taps blended back with the dry signal.
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
- dual sub-millisecond modulated delays
- 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 processed path after the modulation core.
- output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
- depth: Expands the excursion of the sub-millisecond delay taps that form the flanger comb sweep.
- rate: Sets the speeds of the offset left and right LFOs that move the short delay taps.
- tone: Raises the contribution of the delayed flanger branch before it is blended back into the dry signal.
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
- leftFx
- rightFx
- phraseMono
Controls
Audible controls in this DSP
Blends the untouched stereo preview source with the processed path after the modulation core.
Lower settings keep more direct attack and body; higher settings push the effected motion further forward.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the actual modulation or filtering structure.
Expands the excursion of the sub-millisecond delay taps that form the flanger comb sweep.
Makes the comb motion wider and more intense.
Sets the speeds of the offset left and right LFOs that move the short delay taps.
Changes how quickly the flanger sweep cycles.
Raises the contribution of the delayed flanger branch before it is blended back into the dry signal.
Makes the sweep sharper and more obvious.
Analysis
Code-derived notes
Current implementation shares the same short-delay stereo flanger core across the flanger set.
Active blocks
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- leftFx
- rightFx
- phraseMono
- previewShiftSamples
- flangeA
- flangeB
- pickedVoice
- maxDelaySamples
- driftA
- driftB
- fund
- pickEnv
- ampEnv
- triggerAt
Inactive helpers
- synthVoice
- organVoice
- bellVoice
- softsat
- quantize
- combLP
- echoOnly
- diffuser
Warnings
No current warnings are attached to this effect.
Source
- library/chorus-phaser-flanger-motion/instant-flanger.dsp
- Output stage: DC blocker -> output gain trim -> final tanh limiter
- Library position: 114