How It Works
Technical view
The current tremolo and pan family applies a high shelf and then multiplies left and right channels by two offset amplitude LFOs, producing stereo pulse movement rather than a separate dry or wet path. `rate` sets the modulation speed, `mix` changes how strongly that gain law dominates the output, and the declared `depth` control is unused in the current preview.
- 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
- 3post-source high-shelf tone shaping
- 4independent left and right amplitude modulation
- 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 amplitude-modulation core with offset left and right LFOs and post-source high-shelf shaping.
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
- post-source high-shelf tone shaping
- independent left and right amplitude modulation
- 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: Changes how strongly the modulated gain law dominates the output level in the current amplitude formula.
- output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
- depth: Declared in the shared control set but unused in the current preview code.
- rate: Sets the speeds of the offset left and right amplitude LFOs.
- tone: Adjusts the high-shelf stage that brightens the signal before amplitude modulation.
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
Changes how strongly the modulated gain law dominates the output level in the current amplitude formula.
Higher settings deepen the pulsing and reduce the steady-through level instead of acting like a normal dry/wet blend.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the actual modulation or filtering structure.
Declared in the shared control set but unused in the current preview code.
Changing it currently has no effect on the sound.
Sets the speeds of the offset left and right amplitude LFOs.
Changes how quickly the tremolo or pan motion pulses across the stereo field.
Adjusts the high-shelf stage that brightens the signal before amplitude modulation.
Makes the pulses darker or brighter without changing the modulation timing.
Analysis
Code-derived notes
Current implementation shares the same stereo amplitude-modulation core across the tremolo and pan set, and the declared depth control is inactive.
Active blocks
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- leftFx
- rightFx
- phraseMono
- previewShiftSamples
- toneShaper
- panA
- panB
- 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/chorus-phaser-flanger-motion/auto-pan.dsp
- Output stage: DC blocker -> output gain trim -> final tanh limiter
- Library position: 106