← Back to Delay & Echo

Official effect

Modulated Delay

Stereo delay taps with moving delay times that add chorus-like motion to the repeats.

The current `Modulated Delay` patch uses short moving delay taps on each channel and brightens the wet branch with a high shelf before adding it back over the dry source. `time` sets the base delay lengths, `feedback` actually raises the LFO speeds that move those taps instead of creating a feedback loop, and `tone` brightens the modulated repeat branch.

  • Delay & Echo
  • Library #136
  • 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 current `Modulated Delay` patch uses short moving delay taps on each channel and brightens the wet branch with a high shelf before adding it back over the dry source. `time` sets the base delay lengths, `feedback` actually raises the LFO speeds that move those taps instead of creating a feedback loop, and `tone` brightens the modulated repeat branch.

  • Delay & Echo
  • 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 delay core.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3independent moving delay taps
  4. 4post-delay high-shelf shaping
  5. 5repeat branch added over the dry source
  6. 6DC blocker
  7. 7output gain trim
  8. 8final 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 delay core.

Effect core

Stereo moving-delay repeat engine with high-shelf-shaped wet taps and no true feedback loop.

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
  • independent moving delay taps
  • post-delay high-shelf shaping
  • repeat branch added over the dry source
  • 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: Scales the repeat branch above the always-present dry phrase.
  • output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
  • time: Sets the base delay times that the modulation moves around.
  • feedback: Raises the speeds of the delay-time LFOs rather than creating a feedback loop.
  • tone: Adjusts the high shelf on the moving repeat branch.

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
  • leftFx
  • rightFx
  • phraseMono

Controls

Audible controls in this DSP

  • mix

    Active

    Scales the repeat branch above the always-present dry phrase.

    Raises repeat level without fully removing the original attack.

  • output_gain_db

    Active

    Applies final post-effect level trim after DC blocking and before the output limiter.

    Matches loudness without changing the actual delay structure.

  • time

    Active

    Sets the base delay times that the modulation moves around.

    Moves the echoes from shorter motion into longer trailing repeats.

  • feedback

    Active

    Raises the speeds of the delay-time LFOs rather than creating a feedback loop.

    Makes the repeat motion wobble faster.

  • tone

    Active

    Adjusts the high shelf on the moving repeat branch.

    Makes the moving repeats darker or brighter.

Analysis

Code-derived notes

Current implementation uses moving delay taps without a recirculating feedback loop, and the feedback control is repurposed as modulation speed.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • leftFx
  • rightFx
  • phraseMono
  • previewShiftSamples
  • combLP
  • delayA
  • delayB
  • pickedVoice
  • maxDelaySamples
  • fund
  • pickEnv
  • ampEnv
  • triggerAt

Inactive helpers

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

Warnings

No current warnings are attached to this effect.

Source

  • library/delay-echo/modulated-delay.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 136

More In Delay & Echo

Continue through the library

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

Tape Echo

Currently a clean stereo feedback echo rather than a worn tape model with wow, flutter, or saturation.

View How It Works

Ping-Pong Delay

Currently independent left and right stereo repeats rather than a true alternating ping-pong bounce.

View How It Works

Granular Delay

Currently a stepped short-delay texture with quantized fragments rather than a true grain-cloud engine.

View How It Works