How It Works
Technical view
The current vibrato core replaces the dry path with two short modulated delays around 4 to 4.5 ms, so the effect is fully wet and pitch movement comes entirely from delay modulation. `depth` controls the excursion of those delays and `rate` drives the offset left and right LFOs, while the shared `mix` and `tone` controls are declared but 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
- 3dual short modulated delays
- 4fully wet vibrato output
- 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
Fully wet dual-LFO delay vibrato with no dry blend in the current code.
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 short modulated delays
- fully wet vibrato output
- 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: Declared in the shared control set but unused in the current preview code.
- output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
- depth: Expands the excursion of the fully wet delay taps on both channels.
- rate: Sets the speeds of the offset left and right LFOs that move the vibrato delays.
- tone: 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
- leftFx
- rightFx
- phraseMono
Controls
Audible controls in this DSP
Declared in the shared control set but unused in the current preview code.
Changing it currently has no effect on the sound.
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 fully wet delay taps on both channels.
Increases the pitch bend amount and makes the wobble feel more seasick.
Sets the speeds of the offset left and right LFOs that move the vibrato delays.
Changes how quickly the pitch motion cycles.
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 fully wet dual-delay vibrato core across the vibrato set, and the declared mix and tone controls are inactive. Tape Vibrato is not yet differentiated with its own wow-and-flutter path.
Active blocks
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- leftFx
- rightFx
- phraseMono
- previewShiftSamples
- leftWet
- rightWet
- pickedVoice
- maxDelaySamples
- lfoA
- lfoB
- 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/tape-vibrato.dsp
- Output stage: DC blocker -> output gain trim -> final tanh limiter
- Library position: 99