Official effect
Sustain-oriented leveling that currently uses the same envelope-scaling core as the other compressor variants.
The active path matches Studio Compressor in the current code: a smoothed level detector feeds an envelope-based gain-scaling stage, followed by low-shelf contouring and a high-shelf tone control. It already extends sustain by reducing peaks and lifting the tail through the global mix structure, but it is not yet a separate sustain-specific topology.
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
The active path matches Studio Compressor in the current code: a smoothed level detector feeds an envelope-based gain-scaling stage, followed by low-shelf contouring and a high-shelf tone control. It already extends sustain by reducing peaks and lifting the tail through the global mix structure, but it is not yet a separate sustain-specific topology.
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 dynamics or EQ 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 dynamics or EQ core.
Envelope-dependent gain reduction with post-compression low-shelf contouring and high-shelf tone 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 processed path after the core effect.
Lower settings keep more dry attack and natural dynamics; higher settings push the processed behavior forward.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the actual dynamic or EQ structure.
Raises the multiplier applied to the smoothed input envelope in the denominator of the gain-scaling stage.
Increases sustain and peak flattening as it rises.
Adjusts the post-processing high shelf.
Keeps the sustained signal darker and rounder or brighter and more present.
Raises the numerator of the gain-scaling stage and adjusts the post-processing low shelf.
Adds body and fullness to the leveled signal.
Analysis
Current implementation shares the same envelope-leveling compressor core as Studio Compressor, Optical Compressor, FET Compressor, Parallel Compressor, Multi-Band Compressor, and Upward Compressor.
No current warnings are attached to this effect.
More In Compression, Gate & EQ
Each effect page uses the same generated description pipeline and compiled waveform preview assets.