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Official effect

Amp-Like Overdrive

Mid-forward soft clipping tuned to feel more like a pushed amp stage than a flat clean boost.

This patch keeps the same stereo picked-string preview source and overall drive topology as Transparent Overdrive, but it pushes the 930 Hz peak harder before saturation and starts from a darker post-drive high shelf. The result is still a single tanh stage, but with more low-mid emphasis and a smoother top so the breakup reads as amp-like rather than transparent.

  • Drive, Boost & Saturation
  • Library #2
  • 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 patch keeps the same stereo picked-string preview source and overall drive topology as Transparent Overdrive, but it pushes the 930 Hz peak harder before saturation and starts from a darker post-drive high shelf. The result is still a single tanh stage, but with more low-mid emphasis and a smoother top so the breakup reads as amp-like rather than transparent.

  • 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 reaches the drive stage.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3high-pass cleanup
  4. 4low-shelf boost and stronger 930 Hz mid emphasis
  5. 5single tanh saturation stage
  6. 6darker post-drive high-shelf compensation
  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 reaches the drive stage.

Effect core

Single-stage tanh overdrive with stronger pre-drive mid emphasis and darker post-drive shelf compensation.

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 boost and stronger 930 Hz mid emphasis
  • single tanh saturation stage
  • darker post-drive high-shelf compensation
  • 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 overdriven path.
  • output_gain_db: Applies post-effect output trim after the DC blocker and before final limiting.
  • drive: Raises the input level into the tanh saturation stage.
  • tone: Controls the post-drive high shelf at the end of the drive block.
  • contour: Increases both the low shelf and the broader 930 Hz mid push before 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
  • driveTone
  • phraseMono
  • previewShiftSamples

Controls

Audible controls in this DSP

  • mix

    Active

    Blends the untouched stereo preview source with the overdriven path.

    Lower settings keep the clean attack more obvious; higher settings favor the driven amp-like body.

  • output_gain_db

    Active

    Applies post-effect output trim after the DC blocker and before final limiting.

    Raises or lowers overall level without changing saturation texture.

  • drive

    Active

    Raises the input level into the tanh saturation stage.

    Moves the patch from light breakup toward thicker, more compressed overdrive.

  • tone

    Active

    Controls the post-drive high shelf at the end of the drive block.

    Brightens the top for more edge or keeps the breakup darker and smoother.

  • contour

    Active

    Increases both the low shelf and the broader 930 Hz mid push before clipping.

    Makes the patch feel fuller and more combo-amp-like in the low mids.

Analysis

Code-derived notes

Reviewed against the current DSP. This variant differs from Transparent Overdrive primarily by stronger pre-drive mid emphasis and a darker post-drive shelf, not by a different overall signal-flow topology.

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/amp-like-overdrive.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 2

More In Drive, Boost & Saturation

Continue through the library

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

Transparent Overdrive

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

View How It Works

Hard-Clip Distortion

Cascaded clipping with reinforced lows and upper mids for tighter attack and more modern bite.

View How It Works

Tape Preamp

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

View How It Works