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Official effect

Transient Shaper

Attack enhancer that adds a high-passed transient difference back on top of the dry input before final shelf shaping.

The core subtracts a low-passed version of the signal from the original to isolate fast attack content, scales that difference with `squeeze`, and adds it back to the dry path. After that it applies a low shelf and high shelf, so the result behaves like a simple transient booster rather than a separate attack-and-sustain two-knob shaper.

  • Compression, Gate & EQ
  • Library #54
  • 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 core subtracts a low-passed version of the signal from the original to isolate fast attack content, scales that difference with `squeeze`, and adds it back to the dry path. After that it applies a low shelf and high shelf, so the result behaves like a simple transient booster rather than a separate attack-and-sustain two-knob shaper.

  • Compression, Gate & EQ
  • 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 dynamics or EQ core.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3transient-difference extraction
  4. 4attack enhancement by adding the transient layer back
  5. 5low-shelf contour shaping
  6. 6post-processing 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 dynamics or EQ core.

Effect core

Transient-difference enhancer with post-processing low- and high-shelf 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
  • transient-difference extraction
  • attack enhancement by adding the transient layer back
  • low-shelf contour shaping
  • post-processing 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 processed path after the core effect.
  • output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
  • squeeze: Scales the high-passed transient difference before it is added back to the original signal.
  • tone: Adjusts the post-processing high shelf.
  • contour: Adjusts the post-processing low shelf.

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
  • gateCore
  • phraseMono
  • previewShiftSamples

Controls

Audible controls in this DSP

  • mix

    Active

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

    Lower settings keep more dry attack and natural dynamics; higher settings push the processed behavior 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 dynamic or EQ structure.

  • squeeze

    Active

    Scales the high-passed transient difference before it is added back to the original signal.

    Makes pick attack and front-edge snap more or less pronounced.

  • tone

    Active

    Adjusts the post-processing high shelf.

    Opens or softens the top end after the transient enhancement.

  • contour

    Active

    Adjusts the post-processing low shelf.

    Adds or removes low-end support underneath the attack emphasis.

Analysis

Code-derived notes

Current implementation focuses on attack enhancement only; it does not independently shape sustain.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • gateCore
  • phraseMono
  • previewShiftSamples
  • transientCore
  • pickedVoice
  • fund
  • pickEnv
  • ampEnv
  • triggerAt
  • maxDelaySamples

Inactive helpers

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

Warnings

No current warnings are attached to this effect.

Source

  • library/compression-gate-eq/transient-shaper.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 54

More In Compression, Gate & EQ

Continue through the library

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

Studio Compressor

Balanced envelope-controlled leveling with mild low-end contour shaping and a restrained high-shelf finish.

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Optical Compressor

Smooth envelope-leveling compressor that currently uses the same gain-scaling core as Studio Compressor.

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Parametric EQ

Three-stage EQ with low shelf, one sweepable mid peak, and a final high shelf.

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