Expander

Dynamic range expansion with configurable threshold, ratio, attack, release, and range. Opens up dynamics below the threshold.

Parameters

Dynamics

Parameter	Type	Range	Default	Unit	Description
Threshold	Float	-80 .. 0	-40	dB	Level below which expansion starts
Ratio	Float	1 .. 20	2	:1	Expansion amount (input:output)
Range	Float	0 .. 80	40	dB	Max attenuation below threshold
Knee	Float	0 .. 20	6	dB	Softness of threshold transition
Hysteresis	Float	0 .. 12	4	dB	Open/close threshold difference

Timing

Parameter	Type	Range	Default	Unit	Description
Attack	Float	0.1 .. 50	1	ms	Time to reach full expansion
Release	Float	10 .. 2000	100	ms	Time to return to unity gain
Hold	Float	0 .. 500	10	ms	Minimum open time after trigger
Lookahead	Float	0 .. 20	0	ms	Pre-delay for transient catching

Output

Parameter	Type	Range	Default	Unit	Description
Mix	Float	0 .. 1	1	%	Dry/wet blend
Auto Makeup	Bool	On / Off	Off	-	Auto-compensate for gain reduction
Measured Auto Makeup	Bool	On / Off	Off	-	Makeup based on measured reduction

Channels

Parameter	Type	Range	Default	Unit	Description
Link Channels	Bool	On / Off	Linked	-	Stereo-link detector for L/R

Sidechain

Parameter	Type	Range	Default	Unit	Description
Sidechain HPF	Float	0 .. 500	80	Hz	High-pass on detector input
Detection Mode	Choice (Peak, RMS)	2 options	Peak	-	Peak or RMS level detection