How It Works
Technical view
The current widener family does not build a true mid/side matrix or route different inputs. It keeps the dry stereo preview source intact, then adds one short delayed tap per side using `de.fdelay4`, with `width` setting the left and right tap times and `motion` raising the delayed-branch contribution. `mix` scales those delayed taps against the dry source, the declared `tone` control is inactive, and the result then passes through the shared DC-blocking, output-gain, and soft-limiting stage.
- Stereo, Utility & Routing
- 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 the shared 19-sample right-channel offset before the utility layer adds another pair of short per-side delays.
- 1internal picked-string demo phrase
- 2shared stereo spread with a short right-channel delay
- 3left short-delay tap
- 4right short-delay tap
- 5dry / short-delay sum
- 6DC blocker
- 7output gain trim
- 8final tanh limiter
Preview source
An internally generated picked-string phrase is widened to stereo with the shared 19-sample right-channel offset before the utility layer adds another pair of short per-side delays.
Effect core
Current short-delay widener shared with Stereo Image Shaper, crossfaded against the dry preview phrase.
Signal path
The static waveform and the live player both reflect this compiled signal chain.
- internal picked-string demo phrase
- shared stereo spread with a short right-channel delay
- left short-delay tap
- right short-delay tap
- dry / short-delay sum
- 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: Crossfades or scales the current wet layer against the dry stereo preview source.
- output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
- width: Sets the short left and right delay times used for the widening taps.
- motion: Raises the gain of the delayed side taps inside the widening layer.
- 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
Crossfades or scales the current wet layer against the dry stereo preview source.
Higher settings make the processed layer more dominant relative to the dry phrase.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the underlying effect structure.
Sets the short left and right delay times used for the widening taps.
Higher settings spread the channels farther apart by increasing the per-side offset.
Raises the gain of the delayed side taps inside the widening layer.
Higher settings make the widening effect more obvious.
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 exact same short-delay widener architecture with Stereo Image Shaper, Mid/Side Widener, and Short-Delay Spread. It does not yet switch between sources, and the declared tone control is inactive.
Active blocks
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- leftFx
- rightFx
- 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/stereo-utility-routing/line-selector.dsp
- Output stage: DC blocker -> output gain trim -> final tanh limiter
- Library position: 266