How It Works
Technical view
The current stereo tap family sends each channel through an independent single delay tap with high-shelf shaping and then adds that branch back to the dry signal. `time` sets the two taps, `tone` brightens the delayed branches, and the shared `feedback` control is currently used as an output gain multiplier on those taps rather than as a true feedback loop. The current implementation does not hand repeats across channels.
- 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.
- 1internal picked-string demo phrase
- 2stereo spread with a short right-channel delay
- 3independent left and right delay taps
- 4post-delay high-shelf shaping
- 5repeat branch added over the dry source
- 6DC blocker
- 7output gain trim
- 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 dual-tap delay with per-side high-shelf shaping and no true cross-channel feedback loop in the current code.
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 left and right 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 left and right tap times for the stereo repeats.
- feedback: Raises the gain applied to the delayed branches rather than feeding them back into a loop.
- tone: Adjusts the high shelf on the delayed branches.
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
Scales the repeat branch above the always-present dry phrase.
Raises repeat level without fully removing the original attack.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the actual delay structure.
Sets the left and right tap times for the stereo repeats.
Moves the bounce spacing from tighter to longer stereo echoes.
Raises the gain applied to the delayed branches rather than feeding them back into a loop.
Makes the stereo repeats louder and more forward without creating extra repeat generations.
Adjusts the high shelf on the delayed branches.
Makes the repeats darker or brighter.
Analysis
Code-derived notes
Current implementation shares the same independent stereo tap core across Ping-Pong Delay and Stereo Cross-Feedback Delay, and the feedback control scales tap level rather than driving a feedback loop. Ping-Pong Delay does not yet alternate repeats between channels.
Active blocks
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- leftFx
- rightFx
- phraseMono
- previewShiftSamples
- maxDelaySamples
- delayA
- delayB
- pickedVoice
- fund
- pickEnv
- ampEnv
- triggerAt
Inactive helpers
- synthVoice
- organVoice
- bellVoice
- softsat
- quantize
- combLP
- echoOnly
- diffuser
Warnings
No current warnings are attached to this effect.
Source
- library/delay-echo/ping-pong-delay.dsp
- Output stage: DC blocker -> output gain trim -> final tanh limiter
- Library position: 125