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Official effect

Mid-Hump Overdrive

Soft-clipped overdrive with a pronounced 930 Hz mid push and reduced low-shelf lift.

Compared with the other soft-clip overdrives, this one backs the pre-drive low shelf down and pushes the 930 Hz peak much harder before the same single tanh stage. That shifts more energy into the midrange, so `contour` acts more like a real hump control while `tone` still manages the post-drive high shelf after saturation.

  • Drive, Boost & Saturation
  • Library #12
  • 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

Compared with the other soft-clip overdrives, this one backs the pre-drive low shelf down and pushes the 930 Hz peak much harder before the same single tanh stage. That shifts more energy into the midrange, so `contour` acts more like a real hump control while `tone` still manages the post-drive high shelf after saturation.

  • 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 active drive path.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3high-pass cleanup
  4. 4reduced low-shelf lift and stronger 930 Hz mid emphasis
  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 reaches the active drive path.

Effect core

Single-stage tanh overdrive with restrained lows and a deliberately exaggerated 930 Hz mid emphasis.

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
  • reduced low-shelf lift and stronger 930 Hz mid emphasis
  • 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 clean stereo preview source with the soft-clipped overdrive path.
  • output_gain_db: Applies final post-effect level trim after the DC blocker.
  • drive: Raises the level feeding the single tanh saturation stage.
  • tone: Controls the post-drive high shelf after saturation.
  • contour: Changes the low shelf and 930 Hz emphasis ahead of 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 clean stereo preview source with the soft-clipped overdrive path.

    Lower values keep more dry articulation; higher values favor the overdrive voice.

  • output_gain_db

    Active

    Applies final post-effect level trim after the DC blocker.

    Balances loudness without changing how the clipping stage behaves.

  • drive

    Active

    Raises the level feeding the single tanh saturation stage.

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

  • tone

    Active

    Controls the post-drive high shelf after saturation.

    Brightens the clipped signal for more edge or smooths it for a darker voice.

  • contour

    Active

    Changes the low shelf and 930 Hz emphasis ahead of clipping.

    Pushes more body or midrange into saturation, changing how focused the overdrive feels.

Analysis

Code-derived notes

Reviewed against the current DSP. This is one of the clearer genuinely differentiated single-stage overdrives because the pre-drive mid emphasis is much stronger than the neighboring files.

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/mid-hump-overdrive.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 12

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.

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Amp-Like Overdrive

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

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