@prefix doap: <http://usefulinc.com/ns/doap#> .
@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
@prefix mda: <http://drobilla.net/plugins/mda/> .
@prefix param: <http://lv2plug.in/ns/ext/parameters#> .
@prefix pg: <http://lv2plug.in/ns/ext/port-groups#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

<http://drobilla.net/plugins/mda/RezFilter/env>
	a param:EnvelopeControls ,
		pg:InputGroup ;
	lv2:name "Envelope" ;
	lv2:symbol "env" .

<http://drobilla.net/plugins/mda/RezFilter/filt>
	a param:FilterControls ,
		pg:InputGroup ;
	lv2:name "Filter" ;
	lv2:symbol "filt" .

mda:RezFilter
	a lv2:Plugin ,
		lv2:FilterPlugin ;
	lv2:project mda: ;
	lv2:symbol "RezFilter" ;
	doap:name "MDA RezFilter" ;
	doap:shortdesc "Resonant filter with LFO and envelope follower" ;
	doap:license <http://usefulinc.com/doap/licenses/gpl> ;
	lv2:optionalFeature lv2:hardRTCapable ;
	pg:mainInput mda:mainIn ;
	pg:mainOutput mda:mainOut ;
	lv2:port [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 0 ;
		lv2:name "Freq" ;
		lv2:symbol "freq" ;
		lv2:default 0.33 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		lv2:designation param:cutoffFrequency ;
		pg:group <http://drobilla.net/plugins/mda/RezFilter/filt>
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 1 ;
		lv2:name "Res" ;
		lv2:symbol "res" ;
		lv2:default 0.7 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		lv2:designation param:resonance ;
		pg:group <http://drobilla.net/plugins/mda/RezFilter/filt>
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 2 ;
		lv2:name "Output" ;
		lv2:symbol "output" ;
		lv2:default 0.5 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		rdfs:comment "Level trim"
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 3 ;
		lv2:name "Env->VCF" ;
		lv2:symbol "env_vcf" ;
		lv2:default 0.85 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		rdfs:comment "Positive or negative (squelchy!) envelope modulation of cut-off frequency"
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 4 ;
		lv2:name "Attack" ;
		lv2:symbol "attack" ;
		lv2:default 0.0 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		lv2:designation param:attack ;
		pg:group <http://drobilla.net/plugins/mda/RezFilter/env>
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 5 ;
		lv2:name "Release" ;
		lv2:symbol "release" ;
		lv2:default 0.5 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		lv2:designation param:release ;
		pg:group <http://drobilla.net/plugins/mda/RezFilter/env>
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 6 ;
		lv2:name "LFO->VCF" ;
		lv2:symbol "lfo_vcf" ;
		lv2:default 0.7 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		rdfs:comment "LFO modulation of cut-off frequency (turn to left for sample & hold LFO, right for sine)"
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 7 ;
		lv2:name "LFO Rate" ;
		lv2:symbol "lfo_rate" ;
		lv2:default 0.4 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		rdfs:comment "LFO modulation speed"
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 8 ;
		lv2:name "Trigger" ;
		lv2:symbol "trigger" ;
		lv2:default 0.0 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		rdfs:comment "Envelope trigger level (normally set to minimum to acts as a free-running envelope follower)"
	] , [
		a lv2:InputPort ,
			lv2:ControlPort ;
		lv2:index 9 ;
		lv2:name "Max Freq" ;
		lv2:symbol "max_freq" ;
		lv2:default 0.75 ;
		lv2:minimum 0.0 ;
		lv2:maximum 1.0 ;
		rdfs:comment """Limit maximum cut-off frequency for a mellower sound (the filter can sound "screechy" at high frequencies)"""
	] , [
		a lv2:InputPort ,
			lv2:AudioPort ;
		lv2:index 10 ;
		lv2:symbol "left_in" ;
		lv2:name "Left In" ;
		lv2:designation pg:left ;
		pg:group mda:mainIn
	] , [
		a lv2:InputPort ,
			lv2:AudioPort ;
		lv2:index 11 ;
		lv2:symbol "right_in" ;
		lv2:name "Right In" ;
		lv2:designation pg:right ;
		pg:group mda:mainIn
	] , [
		a lv2:OutputPort ,
			lv2:AudioPort ;
		lv2:index 12 ;
		lv2:symbol "left_out" ;
		lv2:name "Left Out" ;
		lv2:designation pg:left ;
		pg:group mda:mainOut
	] , [
		a lv2:OutputPort ,
			lv2:AudioPort ;
		lv2:index 13 ;
		lv2:symbol "right_out" ;
		lv2:name "Right Out" ;
		lv2:designation pg:right ;
		pg:group mda:mainOut
	] .