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Official effect

Alias Fuzz

Clipped fuzz followed by value quantization for grainy digital edges and stepped top-end trash.

This path drives the signal into a single tanh fuzz stage and then runs it through a quantizer before the final high-shelf EQ. `bias` controls the quantization step count in the current code, so lower settings make the output coarser and more crushed rather than shifting transistor bias.

  • Fuzz & Destruction
  • Library #38
  • 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

This path drives the signal into a single tanh fuzz stage and then runs it through a quantizer before the final high-shelf EQ. `bias` controls the quantization step count in the current code, so lower settings make the output coarser and more crushed rather than shifting transistor bias.

  • 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. 3single tanh fuzz stage
  4. 4amplitude quantization
  5. 5post-fuzz high-shelf tone shaping
  6. 6dry / wet mix
  7. 7DC blocker
  8. 8output gain trim
  9. 9final 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

Single-stage fuzz followed by amplitude quantization and 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
  • single tanh fuzz stage
  • amplitude quantization
  • 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 initial tanh fuzz stage.
  • tone: Adjusts the post-fuzz high shelf after quantization.
  • bias: Sets the quantization resolution after clipping.

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 initial tanh fuzz stage.

    Adds sustain and pushes more signal into the aliased texture.

  • tone

    Active

    Adjusts the post-fuzz high shelf after quantization.

    Lets more digital edge through or rounds the top off.

  • bias

    Active

    Sets the quantization resolution after clipping.

    Lower settings sound grainier and more stepped; higher settings smooth the quantized edge.

Analysis

Code-derived notes

Current implementation shares the same quantized fuzz topology as Crushed Bias Fuzz.

Active blocks

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

Inactive helpers

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

Warnings

No current warnings are attached to this effect.

Source

  • library/fuzz-destruction/alias-fuzz.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 38

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

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