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Official effect

Transparent Overdrive

Keeps the dry attack intact while adding a broad low-mid lift and light tanh saturation for edge-of-breakup push.

The active drive path high-passes the signal, adds a gentle low shelf and restrained 930 Hz peak, then runs it through a single tanh saturation stage before a post-drive high shelf. `mix` blends that driven path back with the dry stereo preview source, and the result is DC-blocked, gain-trimmed, and softly limited at the output.

  • Drive, Boost & Saturation
  • Library #1
  • 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 drive path high-passes the signal, adds a gentle low shelf and restrained 930 Hz peak, then runs it through a single tanh saturation stage before a post-drive high shelf. `mix` blends that driven path back with the dry stereo preview source, and the result is DC-blocked, gain-trimmed, and softly limited at the output.

  • Drive, Boost & Saturation
  • 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 overdrive core.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3high-pass cleanup
  4. 4low-shelf and 930 Hz contour shaping
  5. 5single tanh saturation stage
  6. 6post-drive 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 overdrive core.

Effect core

Single-stage tanh overdrive with contourable low-mid emphasis and post-drive 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-pass cleanup
  • low-shelf and 930 Hz contour shaping
  • single tanh saturation stage
  • post-drive 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 driven path after saturation.
  • output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
  • drive: Raises the input multiplier feeding the tanh stage.
  • tone: Adjusts the post-drive high shelf centered around the upper mids and highs.
  • contour: Increases the low shelf and broad 930 Hz peak before saturation.

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
  • driveTone
  • phraseMono
  • previewShiftSamples

Controls

Audible controls in this DSP

  • mix

    Active

    Blends the untouched stereo preview source with the driven path after saturation.

    Lower settings keep more pick attack and clean body; higher settings push the overdriven tone 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 drive structure.

  • drive

    Active

    Raises the input multiplier feeding the tanh stage.

    Adds more breakup, sustain, and soft compression as it increases.

  • tone

    Active

    Adjusts the post-drive high shelf centered around the upper mids and highs.

    Opens the top end for more bite or rolls it back for a softer edge.

  • contour

    Active

    Increases the low shelf and broad 930 Hz peak before saturation.

    Adds body and low-mid push without turning the patch into a heavier distortion.

Analysis

Code-derived notes

Reviewed against the current DSP. This preview shares the same stereo demo phrase and output stage as the related drive-family patches; the audible identity comes from the driveTone EQ and saturation coefficients.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • driveTone
  • 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/drive-boost-saturation/transparent-overdrive.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 1

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

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Tape Preamp

Low-gain tape-style saturation with added weight in the lows and a deliberately softened top end.

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