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Diffstat (limited to 'ns/ext/cv-port/cv-port.ttl')
| -rw-r--r-- | ns/ext/cv-port/cv-port.ttl | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/ns/ext/cv-port/cv-port.ttl b/ns/ext/cv-port/cv-port.ttl new file mode 100644 index 0000000..f49024b --- /dev/null +++ b/ns/ext/cv-port/cv-port.ttl @@ -0,0 +1,77 @@ +# LV2 CV Port Extension +# Copyright 2011 David Robillard <http://drobilla.net> +# +# Permission to use, copy, modify, and/or distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +@prefix cv: <http://lv2plug.in/ns/ext/cv-port#> . +@prefix doap: <http://usefulinc.com/ns/doap#> . +@prefix foaf: <http://xmlns.com/foaf/0.1/> . +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . + +<http://lv2plug.in/ns/ext/cv-port> + a lv2:Specification ; + doap:license <http://opensource.org/licenses/isc-license> ; + doap:name "LV2 CV Port" ; + doap:shortdesc "Control Voltage ports for LV2 plugins." ; + doap:maintainer [ + a foaf:Person ; + foaf:name "David Robillard" ; + foaf:homepage <http://drobilla.net/> ; + rdfs:seeAlso <http://drobilla.net/drobilla.rdf> + ] ; + lv2:documentation """ +<p>This extension defines Control Voltage (CV) ports, which are audio-rate +control ports like those used on classical voltage-controlled synthesizers. +These ports serve as control ports like <a +href="http://lv2plug.in/ns/lv2core#ControlPort">lv2:ControlPort</a> but can +also be used for audio-rate modulation of control signals. This enables many +types of processing and synthesis which are not possible with a lower control +rate.</p> +""" . + +cv:CVPort + a rdfs:Class ; + rdfs:label "CV Port" ; + rdfs:subClassOf lv2:Port ; + lv2:documentation """ + +<p>Ports of this type have identical semantics to <a +href="http://lv2plug.in/ns/lv2core#AudioPort">lv2:AudioPort</a> in terms of +buffer format and connection/input/output logistics. However, rather than the +buffer representing audio, the buffer represents audio-rate control data. A +CVPort SHOULD have the same properties a <a +href="http://lv2plug.in/ns/lv2core#ControlPort">lv2:ControlPort</a> typically +has to describe appropriate control values (e.g. <a +href="http://lv2plug.in/ns/lv2core#minimum">lv2:minimum</a>, <a +href="http://lv2plug.in/ns/lv2core#maximum">lv2:maximum</a>, <a +href="http://lv2plug.in/ns/lv2core#default">lv2:default</a>)</p> + +<p>Hosts SHOULD take care to prevent data from a CVPort port from being used as +audio except in cases where this is known to be safe.</p> + +<p>Example:</p> +<pre class="turtle-code"> +<http://example.org/some-plugin> + lv2:port [ + a cv:CVPort, lv2:InputPort ; + lv2:index 0 ; + lv2:minimum -1.0 ; + lv2:maximum 1.0 ; + lv2:default 0.0 ; + lv2:symbol "modulation" ; + lv2:name "Modulation" ; + ] . +</pre> +""" . |