Official effect
Swept resonant high-pass filter that carves lows out with a moving cutoff and rising emphasis.
Instead of a low-pass wah shape, this patch modulates a resonant high-pass center with a sine LFO. `focus` sets the base cutoff, `motion` increases both sweep depth and resonance, and the final high shelf is tied to `motion`, so the sound gets more incisive as the sweep intensifies.
Static peaks come from the compiled FAUST preview render. The live scope is drawn from the browser playback output in real time.
How It Works
Instead of a low-pass wah shape, this patch modulates a resonant high-pass center with a sine LFO. `focus` sets the base cutoff, `motion` increases both sweep depth and resonance, and the final high shelf is tied to `motion`, so the sound gets more incisive as the sweep intensifies.
Signal Path
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 filter core.
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 filter core.
Sine-LFO-modulated resonant high-pass filter with motion-linked post-filter high-shelf shaping.
The static waveform and the live player both reflect this compiled signal chain.
These are the currently active controls detected in the FAUST source for this effect.
The generated description is tied to the active helper blocks and routing found in the current DSP.
Controls
Blends the untouched stereo preview source with the filtered path after the effect core.
Lower settings preserve more dry attack and full-band tone; higher settings emphasize the filter treatment.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the filter behavior itself.
Sets the base cutoff of the resonant high-pass sweep.
Moves the sweep lower or higher and changes how much low-end is removed.
Increases the sweep depth, resonance, and the final high-shelf recovery.
Makes the filter sharper, thinner, and more aggressive as it rises.
Sets the speed of the internal LFO that moves the high-pass center.
Changes how quickly the filter sweeps through its range.
Analysis
Current implementation is a distinct resonant high-pass sweep rather than a variant of the low-pass family.
No current warnings are attached to this effect.
More In Filter, Wah & Envelope
Each effect page uses the same generated description pipeline and compiled waveform preview assets.