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Official effect

Phase / Polarity Tool

Blends the right channel toward polarity inversion while leaving the left channel untouched.

The current phase tool is extremely simple: the left channel stays untouched while the right channel blends from normal polarity toward an inverted copy as `mix` increases. The declared `width`, `motion`, and `tone` controls are inactive, and the result then passes through the shared DC-blocking, output-gain, and soft-limiting stage.

  • Stereo, Utility & Routing
  • Library #265
  • Preview 8s

Waveform preview

Static peaks come from the compiled FAUST preview render. The live scope is drawn from the browser playback output in real time.

Timeline
0:00 / 0:08
Source
Compiled browser preview
Live oscilloscope from the browser playback output.AnalyserNode keeps the signal path unchanged while exposing the waveform.

How It Works

Technical view

The current phase tool is extremely simple: the left channel stays untouched while the right channel blends from normal polarity toward an inverted copy as `mix` increases. The declared `width`, `motion`, and `tone` controls are 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 right side is blended toward polarity inversion.

  1. 1internal picked-string demo phrase
  2. 2shared stereo spread with a short right-channel delay
  3. 3unchanged left channel
  4. 4right channel blended toward inversion
  5. 5DC blocker
  6. 6output gain trim
  7. 7final tanh limiter

Preview source

An internally generated picked-string phrase is widened to stereo with the shared 19-sample right-channel offset before the right side is blended toward polarity inversion.

Effect core

Right-channel polarity blend against an unchanged left channel.

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
  • unchanged left channel
  • right channel blended toward inversion
  • 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: Declared in the shared control set but unused in the current preview code.
  • motion: Declared in the shared control set but unused in the current preview code.
  • 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

  • mix

    Active

    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.

  • output_gain_db

    Active

    Applies final post-effect level trim after DC blocking and before the output limiter.

    Matches loudness without changing the underlying effect structure.

  • width

    Active

    Declared in the shared control set but unused in the current preview code.

    Changing it currently has no effect on the sound.

  • motion

    Active

    Declared in the shared control set but unused in the current preview code.

    Changing it currently has no effect on the sound.

  • tone

    Active

    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 is intentionally simple: only the right side is polarity-blended, and the declared width, motion, and tone controls are inactive.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • leftFx
  • rightFx
  • phraseMono
  • previewShiftSamples
  • phaseTone
  • 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/phase-polarity-tool.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 265

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