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Official effect

Sustain Pad

Currently the same synthetic held pad core as Granular Freeze, voiced as a fixed sustain layer.

The current freeze family does not capture and hold the live input. Instead, it mixes in a separately synthesized held phrase, runs that synthetic layer through one diffuser stage, and shapes it with a high shelf under `tone`. `motion` stretches the diffuser delay, `shape` raises the held layer level, and `mix` blends that fixed freeze pad against the dry phrase.

  • Looper, Freeze & Glitch
  • Library #223
  • 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 freeze family does not capture and hold the live input. Instead, it mixes in a separately synthesized held phrase, runs that synthetic layer through one diffuser stage, and shapes it with a high shelf under `tone`. `motion` stretches the diffuser delay, `shape` raises the held layer level, and `mix` blends that fixed freeze pad against the dry phrase.

  • 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 as the dry source, and the current effect also layers a separately synthesized held or slowed phrase rather than capturing the live input into a loop buffer.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3separately synthesized held phrase
  4. 4diffuser stage on the synthetic pad
  5. 5high-shelf shaping on the synthetic pad
  6. 6dry / freeze blend
  7. 7DC blocker
  8. 8output gain trim
  9. 9final tanh limiter

Preview source

An internally generated picked-string phrase is widened to stereo as the dry source, and the current effect also layers a separately synthesized held or slowed phrase rather than capturing the live input into a loop buffer.

Effect core

Dry phrase plus a separately synthesized held pad with one diffuser stage and 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
  • separately synthesized held phrase
  • diffuser stage on the synthetic pad
  • high-shelf shaping on the synthetic pad
  • dry / freeze blend
  • 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: Blends between the dry preview phrase and the synthesized freeze pad.
  • output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
  • motion: Lengthens the diffuser delay inside the synthesized freeze pad path.
  • shape: Raises the gain of the synthesized freeze pad before it is mixed with the dry phrase.
  • tone: Adjusts the high-shelf shaping on the synthesized freeze pad.

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

    Blends between the dry preview phrase and the synthesized freeze pad.

    Lower settings stay more direct; higher settings push the held pad further forward.

  • 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

    Lengthens the diffuser delay inside the synthesized freeze pad path.

    Moves the held texture from tighter sustain toward a wider, more blurred pad.

  • shape

    Active

    Raises the gain of the synthesized freeze pad before it is mixed with the dry phrase.

    Makes the held layer denser and more prominent.

  • tone

    Active

    Adjusts the high-shelf shaping on the synthesized freeze pad.

    Makes the held layer darker at low settings and brighter at high settings.

Analysis

Code-derived notes

Current implementation shares the same synthetic hold-pad architecture across Granular Freeze, Momentary Freeze, and Sustain Pad. Sustain Pad currently uses the same synthetic hold core as Granular Freeze.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • leftFx
  • rightFx
  • phraseMono
  • previewShiftSamples
  • freezePad
  • pickedVoice
  • sustainPadMono
  • diffuser
  • fund
  • pickEnv
  • ampEnv
  • triggerAt
  • maxDelaySamples

Inactive helpers

  • synthVoice
  • organVoice
  • bellVoice
  • softsat
  • quantize
  • combLP
  • echoOnly

Warnings

No current warnings are attached to this effect.

Source

  • library/looper-freeze-glitch/sustain-pad.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 223

More In Looper, Freeze & Glitch

Continue through the library

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

Looper

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

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Granular Freeze

Currently a synthetic held pad through a diffuser rather than a true live granular freeze.

View How It Works

Stutter / Beat Repeat

Currently oscillator-driven amplitude chopping rather than a true beat-repeat retrigger buffer.

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