206 lines
5 KiB
Turtle
206 lines
5 KiB
Turtle
@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
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@prefix param: <http://lv2plug.in/ns/ext/parameters#> .
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@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
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@prefix pg: <http://lv2plug.in/ns/ext/port-groups#> .
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@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
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@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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@prefix units: <http://lv2plug.in/ns/extensions/units#> .
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<http://lv2plug.in/ns/ext/parameters>
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a lv2:Specification ;
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rdfs:seeAlso <lv2-parameters.doap.ttl> ;
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lv2:documentation """
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<p>This vocabulary describes parameters common in audio processing software. A
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<q>parameter</q> is purely a metadata concept, unrelated to any particular code
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mechanism. Parameters are used to assign meaning to controls (e.g. using
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lv2:designation for ports) so they can be used more intelligently or presented
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to the user more efficiently.</p> """ .
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param:ControlGroup
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a rdfs:Class ;
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rdfs:subClassOf pg:Group ;
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rdfs:comment "A group representing a set of associated controls." .
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param:amplitude
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "amplitude" .
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param:attack
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "attack" ;
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rdfs:comment "The duration of an envelope's attack stage." .
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param:cutoffFrequency
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "cutoff frequency" .
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param:decay
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "decay" ;
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rdfs:comment "The duration of an envelope's decay stage." .
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param:delay
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "delay" ;
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rdfs:comment "The duration of an envelope's delay stage." .
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param:frequency
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "frequency" .
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param:hold
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "hold" ;
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rdfs:comment "The duration of an envelope's hold stage." .
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param:pulseWidth
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "pulse width" ;
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rdfs:comment "The width of a pulse of a rectangular waveform." .
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param:ratio
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "ratio" ;
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rdfs:comment "Compression ratio." .
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param:release
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "release" ;
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rdfs:comment "The duration of an envelope's release stage." .
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param:resonance
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "resonance" ;
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rdfs:comment "The resonance of a filter." .
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param:sustain
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a lv2:Parameter ;
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rdfs:label "sustain" ;
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rdfs:range atom:Float ;
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rdfs:comment "The level (not duration) of an envelope's sustain stage." .
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param:threshold
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "threshold" ;
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rdfs:comment "Compression threshold." .
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param:waveform
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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rdfs:label "waveform" .
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param:gain
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a lv2:Parameter ;
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rdfs:range atom:Float ;
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lv2:default 0.0 ;
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lv2:minimum -20.0 ;
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lv2:maximum 20.0 ;
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units:unit units:db ;
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rdfs:label "gain" ;
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rdfs:comment "Gain in decibels." .
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param:wetDryRatio
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a lv2:Parameter ;
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rdfs:label "wet/dry ratio" ;
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lv2:documentation """
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<p>The ratio between processed and bypass components in output signal. The dry
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and wet percentages can be calculated from the following equations:</p>
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<pre class="c-code">
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dry = (wetDryRatio.maximum - wetDryRatio.value) / wetDryRatio.maximum
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wet = wetDryRatio.value / wetDryRatio.maximum
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</pre>
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<p>Typically, maximum value of 1 or 100 and minimum value of 0 should be
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used.</p>
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""" .
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param:wetLevel
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a lv2:Parameter ;
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rdfs:label "wet level" ;
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rdfs:comment "The level of the processed component of a signal." .
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param:dryLevel
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a lv2:Parameter ;
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rdfs:label "dry level" ;
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rdfs:comment "The level of the unprocessed component of a signal." .
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param:bypass
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a lv2:Parameter ;
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rdfs:label "bypass" ;
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rdfs:comment "A boolean parameter that disabled processing if true." .
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param:sampleRate
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a lv2:Parameter ;
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rdfs:label "sample rate" ;
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rdfs:comment "A sample rate in Hz." .
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param:EnvelopeControls
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a rdfs:Class ;
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rdfs:subClassOf param:ControlGroup ;
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rdfs:label "DAHDSR Envelope Controls" ;
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pg:element [
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lv2:index 0 ;
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lv2:designation param:delay
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] , [
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lv2:index 1 ;
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lv2:designation param:attack
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] , [
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lv2:index 2 ;
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lv2:designation param:hold
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] , [
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lv2:index 3 ;
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lv2:designation param:decay
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] , [
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lv2:index 4 ;
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lv2:designation param:sustain
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] , [
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lv2:index 5 ;
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lv2:designation param:release
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] .
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param:OscillatorControls
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a rdfs:Class ;
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rdfs:subClassOf param:ControlGroup ;
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rdfs:label "Oscillator Controls" ;
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pg:element [
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lv2:designation param:frequency
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] , [
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lv2:designation param:amplitude
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] , [
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lv2:designation param:waveform
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] , [
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lv2:designation param:pulseWidth
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] .
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param:FilterControls
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a rdfs:Class ;
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rdfs:subClassOf param:ControlGroup ;
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rdfs:label "Filter Controls" ;
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pg:element [
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lv2:designation param:cutoffFrequency
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] , [
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lv2:designation param:resonance
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] .
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param:CompressorControls
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a rdfs:Class ;
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rdfs:subClassOf param:ControlGroup ;
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rdfs:label "Compressor Controls" ;
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pg:element [
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lv2:designation param:threshold
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] , [
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lv2:designation param:ratio
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] .
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