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Official effect

Sub Fuzz

Parallel fuzz with a saturated low-frequency support band that thickens the bottom under the clipped top.

The active path combines a high-passed tanh fuzz branch with a low-passed branch centered on the lows and saturated separately before the two are summed. `bias` drives that low-frequency support branch harder, so the effect behaves more like a low-end reinforcement fuzz than a pitch-derived sub generator.

  • Fuzz & Destruction
  • Library #36
  • 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 active path combines a high-passed tanh fuzz branch with a low-passed branch centered on the lows and saturated separately before the two are summed. `bias` drives that low-frequency support branch harder, so the effect behaves more like a low-end reinforcement fuzz than a pitch-derived sub generator.

  • Fuzz & Destruction
  • 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 fuzz core.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3high-passed tanh fuzz branch
  4. 4low-passed support branch with separate saturation
  5. 5parallel branch sum
  6. 6post-fuzz high-shelf tone shaping
  7. 7dry / wet mix
  8. 8DC blocker
  9. 9output gain trim
  10. 10final 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 fuzz core.

Effect core

Parallel high-band fuzz and low-band saturation branch with post-fuzz high-shelf tone 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
  • high-passed tanh fuzz branch
  • low-passed support branch with separate saturation
  • parallel branch sum
  • post-fuzz high-shelf tone shaping
  • dry / wet mix
  • 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 the untouched stereo preview source with the fuzzed path after the effect core.
  • output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
  • fuzz: Raises the gain feeding the main high-passed fuzz branch.
  • tone: Adjusts the post-fuzz high shelf after the two branches recombine.
  • bias: Raises the saturation amount on the low-passed support branch.

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
  • fuzzCore
  • phraseMono
  • previewShiftSamples

Controls

Audible controls in this DSP

  • mix

    Active

    Blends the untouched stereo preview source with the fuzzed path after the effect core.

    Lower settings preserve more pick attack and clean body; higher settings push the fuzz treatment to the front.

  • output_gain_db

    Active

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

    Matches loudness without changing the actual fuzz structure.

  • fuzz

    Active

    Raises the gain feeding the main high-passed fuzz branch.

    Adds more clipping and sustain to the upper portion of the fuzz sound.

  • tone

    Active

    Adjusts the post-fuzz high shelf after the two branches recombine.

    Opens the top end for more bite or keeps the sub-heavy blend darker.

  • bias

    Active

    Raises the saturation amount on the low-passed support branch.

    Adds more low-end growl and thickness under the main fuzz layer.

Analysis

Code-derived notes

Current implementation reinforces lows with a parallel low-passed saturation branch rather than using octave division or pitch tracking.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • fuzzCore
  • phraseMono
  • previewShiftSamples
  • softsat
  • pickedVoice
  • fund
  • pickEnv
  • ampEnv
  • triggerAt
  • maxDelaySamples

Inactive helpers

  • synthVoice
  • organVoice
  • bellVoice
  • quantize
  • combLP
  • echoOnly
  • diffuser

Warnings

No current warnings are attached to this effect.

Source

  • library/fuzz-destruction/sub-fuzz.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 36

More In Fuzz & Destruction

Continue through the library

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

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