/usr/lib/lv2/fomp.lv2/rec_vco.ttl is in fomp 1.0.0~dfsg0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | @prefix doap: <http://usefulinc.com/ns/doap#> .
@prefix fomp: <http://drobilla.net/plugins/fomp/> .
@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix units: <http://lv2plug.in/ns/extensions/units#> .
fomp:rec_vco
a lv2:Plugin ,
lv2:OscillatorPlugin ;
doap:name "Rec VCO" ;
lv2:microVersion 0 ;
lv2:minorVersion 0 ;
lv2:optionalFeature lv2:hardRTCapable ;
lv2:project fomp: ;
lv2:port [
a lv2:AudioPort ,
lv2:OutputPort ;
lv2:index 0 ;
lv2:name "Output" ;
lv2:symbol "out"
] , [
a lv2:CVPort ,
lv2:InputPort ;
lv2:default 440.0 ;
lv2:index 1 ;
lv2:maximum 1.0 ;
lv2:minimum 0.000001 ;
lv2:name "Frequency" ;
lv2:portProperty <http://lv2plug.in/ns/ext/port-props#logarithmic> ,
lv2:sampleRate ;
lv2:symbol "freq" ;
units:unit units:hz
] , [
a lv2:ControlPort ,
lv2:InputPort ;
lv2:default 0.0 ;
lv2:index 10 ;
lv2:maximum 1.0 ;
lv2:minimum -1.0 ;
lv2:name "Waveform" ;
lv2:symbol "waveform"
] , [
a lv2:ControlPort ,
lv2:InputPort ;
lv2:default 0.0 ;
lv2:index 11 ;
lv2:maximum 4.0 ;
lv2:minimum 0.0 ;
lv2:name "Form mod" ;
lv2:symbol "form_mod"
] , [
a lv2:ControlPort ,
lv2:InputPort ;
lv2:default 1.0 ;
lv2:index 12 ;
lv2:maximum 1.0 ;
lv2:minimum 0.0 ;
lv2:name "LP filter" ;
lv2:symbol "lp_filrer"
] , [
a lv2:CVPort ,
lv2:InputPort ;
lv2:index 2 ;
lv2:name "Exp FM" ;
lv2:symbol "exp_fm" ;
units:unit units:oct
] , [
a lv2:CVPort ,
lv2:InputPort ;
lv2:index 3 ;
lv2:name "Lin FM" ;
lv2:symbol "lin_fm"
] , [
a lv2:CVPort ,
lv2:InputPort ;
lv2:index 4 ;
lv2:name "Mod" ;
lv2:symbol "mod"
] , [
a lv2:CVPort ,
lv2:InputPort ;
lv2:index 5 ;
lv2:name "Sync" ;
lv2:symbol "sync"
] , [
a lv2:ControlPort ,
lv2:InputPort ;
lv2:default 0.0 ;
lv2:index 6 ;
lv2:maximum 4.0 ;
lv2:minimum -4.0 ;
lv2:name "Octave" ;
lv2:portProperty lv2:integer ;
lv2:symbol "octave"
] , [
a lv2:ControlPort ,
lv2:InputPort ;
lv2:default 0.0 ;
lv2:index 7 ;
lv2:maximum 1.0 ;
lv2:minimum 0.0 ;
lv2:name "Tune" ;
lv2:symbol "tune"
] , [
a lv2:ControlPort ,
lv2:InputPort ;
lv2:default 0.0 ;
lv2:index 8 ;
lv2:maximum 4.0 ;
lv2:minimum 0.0 ;
lv2:name "Exp FM gain" ;
lv2:symbol "exp_fm_gain"
] , [
a lv2:ControlPort ,
lv2:InputPort ;
lv2:default 0.0 ;
lv2:index 9 ;
lv2:maximum 4.0 ;
lv2:minimum 0.0 ;
lv2:name "Lin FM gain" ;
lv2:symbol "lin_fm_gain"
] ;
rdfs:comment """Based on the principle of using a precomputed interpolated dirac pulse. The 'edge' for this rectangular variant is made by integrating the anti-aliased pulse.
Aliases should be below -80dB for fundamental frequencies below the sample rate / 6 (i.e. up to 8 kHz at Fsamp = 48 kHz). This frequency range includes the fundamental frequencies of all known musical instruments.
Tests by Matthias Nagorni revealed the output sounded quite 'harsh' when compared to his analogue instruments. Comparing the spectra, it became clear that a mathematically 'exact' spectrum was not desirable from a musical point of view. For this reason, a built-in lowpass filter was added. The default setting (0.5) will yield output identical to that of the Moog Voyager.""" .
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