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Official effect

Looper

Currently a simple stereo repeat built from two delay taps rather than a true record-and-overdub looper.

The current `Looper` path does not record or overdub audio into a loop buffer. Instead, it adds one delay tap per channel over the dry phrase, with `motion` setting the tap lengths and `shape` raising their gain. The declared `tone` control is inactive, so the patch behaves as a simple stereo repeat rather than a true looper.

  • Looper, Freeze & Glitch
  • Library #214
  • 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 `Looper` path does not record or overdub audio into a loop buffer. Instead, it adds one delay tap per channel over the dry phrase, with `motion` setting the tap lengths and `shape` raising their gain. The declared `tone` control is inactive, so the patch behaves as a simple stereo repeat rather than a true looper.

  • Looper, Freeze & Glitch
  • 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 before it hits the current looper or glitch core.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3independent left and right delay taps
  4. 4tap gain shaping
  5. 5delayed taps added over the dry phrase
  6. 6DC blocker
  7. 7output gain trim
  8. 8final tanh limiter

Preview source

An internally generated picked-string phrase is widened to stereo with a 19-sample right-channel delay before it hits the current looper or glitch core.

Effect core

Dry phrase plus two simple stereo delay taps with adjustable timing and tap gain.

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
  • independent left and right delay taps
  • tap gain shaping
  • delayed taps added over the dry phrase
  • 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: Scales the added delayed taps over the always-present dry phrase.
  • output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
  • motion: Sets the lengths of the left and right delay taps that stand in for the loop repeat.
  • shape: Raises the gain applied to the delayed taps.
  • 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

    Scales the added delayed taps over the always-present dry phrase.

    Higher settings make the delayed repeats more audible without removing the direct attack.

  • output_gain_db

    Active

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

    Matches loudness without changing the actual loop, freeze, or glitch structure.

  • motion

    Active

    Sets the lengths of the left and right delay taps that stand in for the loop repeat.

    Moves the repeated phrase from tighter slap-like timing toward a longer loop-like gap.

  • shape

    Active

    Raises the gain applied to the delayed taps.

    Makes the repeat more prominent and louder relative to the dry phrase.

  • 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 a simple stereo repeat rather than a real loop recorder or overdub engine, and the declared tone control is inactive.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • leftFx
  • rightFx
  • phraseMono
  • previewShiftSamples
  • loopWetA
  • loopWetB
  • pickedVoice
  • maxDelaySamples
  • loopA
  • loopB
  • 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/looper-freeze-glitch/looper.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 214

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Each effect page uses the same generated description pipeline and compiled waveform preview assets.

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