# HG changeset patch
# User cannam
# Date 1214237437 0
# Node ID 0f72cadc5cc8b79498686aadbd3eeea141e3a9bf
# Parent  afd60ff5ceefe0ffc69b9b6c0b877bb41dd9aa71
* add provisional rdf files for example plugins

diff -r afd60ff5ceef -r 0f72cadc5cc8 examples/vamp-example-plugins.n3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/vamp-example-plugins.n3	Mon Jun 23 16:10:37 2008 +0000
@@ -0,0 +1,214 @@
+@prefix rdfs:     <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xsd:      <http://www.w3.org/2001/XMLSchema#> .
+@prefix vamp:     <http://purl.org/ontology/vamp/> .
+@prefix plugbase: <http://vamp-plugins.org/rdf/plugins/vamp-example-plugins#> .
+@prefix owl:      <http://www.w3.org/2002/07/owl#> .
+@prefix dc:       <http://purl.org/dc/elements/1.1/> .
+@prefix af:       <http://purl.org/ontology/af/> .
+@prefix foaf:     <http://xmlns.com/foaf/0.1/> .
+@prefix cc:       <http://web.resource.org/cc/> .
+@prefix :         <> .
+
+<>  a   vamp:PluginDescription ;
+    foaf:maker          <blah> ;
+    foaf:maker          <http://www.vamp-plugins.org/doap.rdf#template-generator> ;
+    foaf:primaryTopic   <http://vamp-plugins.org/rdf/plugins/vamp-example-plugins> .
+
+:vamp-example-plugins a  vamp:PluginLibrary ;
+    vamp:identifier "vamp-example-plugins" ; 
+    vamp:available_plugin plugbase:amplitudefollower; 
+    vamp:available_plugin plugbase:percussiononsets; 
+    vamp:available_plugin plugbase:spectralcentroid; 
+    vamp:available_plugin plugbase:zerocrossing .
+
+plugbase:amplitudefollower a   vamp:Plugin ;
+    dc:title              "Amplitude Follower" ;
+    vamp:name             "Amplitude Follower" ;
+    dc:description        "Track the amplitude of the audio signal" ;
+    foaf:maker            [ foaf:name "Vamp SDK Example Plugins"] ; # FIXME could give plugin author's URI here
+    cc:license            <FIXME license for the plugin> ; 
+    vamp:identifier       "amplitudefollower" ;
+    vamp:vamp_API_version vamp:api_version_1 ;
+    owl:versionInfo       "1" ;
+    vamp:input_domain     vamp:TimeDomain ;
+
+    vamp:parameter_descriptor   plugbase:amplitudefollower_param_attack ;
+    vamp:parameter_descriptor   plugbase:amplitudefollower_param_release ;
+
+    vamp:output_descriptor      plugbase:amplitudefollower_output_amplitude ;
+    .
+plugbase:amplitudefollower_param_attack a  vamp:ParameterDescriptor ;
+    vamp:identifier     "attack" ;
+    dc:title            "Attack time" ;
+    dc:format           "s" ;
+    vamp:min_value       0 ;
+    vamp:max_value       1 ;
+    vamp:unit           "s"  ;
+    vamp:default_value   0.01 ;
+    vamp:value_names     ();
+    .
+plugbase:amplitudefollower_param_release a  vamp:ParameterDescriptor ;
+    vamp:identifier     "release" ;
+    dc:title            "Release time" ;
+    dc:format           "s" ;
+    vamp:min_value       0 ;
+    vamp:max_value       1 ;
+    vamp:unit           "s"  ;
+    vamp:default_value   0.01 ;
+    vamp:value_names     ();
+    .
+plugbase:amplitudefollower_output_amplitude a  vamp:DenseOutput ;
+    vamp:identifier       "amplitude" ;
+    dc:title              "Amplitude" ;
+    dc:description        ""  ;
+    vamp:fixed_bin_count  "true" ;
+    vamp:unit             "V" ;
+    vamp:bin_count        1 ;
+    vamp:bin_names        ( "");
+    vamp:computes_feature_type  <FIXME feature type URI> ;
+    vamp:computes_event_type    <FIXME event type URI> ;
+    .
+plugbase:percussiononsets a   vamp:Plugin ;
+    dc:title              "Simple Percussion Onset Detector" ;
+    vamp:name             "Simple Percussion Onset Detector" ;
+    dc:description        "Detect percussive note onsets by identifying broadband energy rises" ;
+    foaf:maker            [ foaf:name "Vamp SDK Example Plugins"] ; # FIXME could give plugin author's URI here
+    cc:license            <FIXME license for the plugin> ; 
+    vamp:identifier       "percussiononsets" ;
+    vamp:vamp_API_version vamp:api_version_1 ;
+    owl:versionInfo       "2" ;
+    vamp:input_domain     vamp:FrequencyDomain ;
+
+    vamp:parameter_descriptor   plugbase:percussiononsets_param_threshold ;
+    vamp:parameter_descriptor   plugbase:percussiononsets_param_sensitivity ;
+
+    vamp:output_descriptor      plugbase:percussiononsets_output_onsets ;
+    vamp:output_descriptor      plugbase:percussiononsets_output_detectionfunction ;
+    .
+plugbase:percussiononsets_param_threshold a  vamp:ParameterDescriptor ;
+    vamp:identifier     "threshold" ;
+    dc:title            "Energy rise threshold" ;
+    dc:format           "dB" ;
+    vamp:min_value       0 ;
+    vamp:max_value       20 ;
+    vamp:unit           "dB"  ;
+    vamp:default_value   3 ;
+    vamp:value_names     ();
+    .
+plugbase:percussiononsets_param_sensitivity a  vamp:ParameterDescriptor ;
+    vamp:identifier     "sensitivity" ;
+    dc:title            "Sensitivity" ;
+    dc:format           "%" ;
+    vamp:min_value       0 ;
+    vamp:max_value       100 ;
+    vamp:unit           "%"  ;
+    vamp:default_value   40 ;
+    vamp:value_names     ();
+    .
+plugbase:percussiononsets_output_onsets a  vamp:SparseOutput ;
+    vamp:identifier       "onsets" ;
+    dc:title              "Onsets" ;
+    dc:description        "Percussive note onset locations"  ;
+    vamp:fixed_bin_count  "true" ;
+    vamp:unit             "" ;
+    vamp:bin_count        0 ;
+    vamp:bin_names        ();
+    vamp:sample_type      vamp:VariableSampleRate ;
+    vamp:sample_rate      44100 ;
+    vamp:computes_feature_type  <FIXME feature type URI> ;
+    vamp:computes_event_type    <FIXME event type URI> ;
+    .
+plugbase:percussiononsets_output_detectionfunction a  vamp:DenseOutput ;
+    vamp:identifier       "detectionfunction" ;
+    dc:title              "Detection Function" ;
+    dc:description        "Broadband energy rise detection function"  ;
+    vamp:fixed_bin_count  "true" ;
+    vamp:unit             "" ;
+    a                     vamp:QuantizedOutput ;
+    vamp:quantize_step    1  ;
+    vamp:bin_count        1 ;
+    vamp:bin_names        ( "");
+    vamp:computes_feature_type  <FIXME feature type URI> ;
+    vamp:computes_event_type    <FIXME event type URI> ;
+    .
+plugbase:spectralcentroid a   vamp:Plugin ;
+    dc:title              "Spectral Centroid" ;
+    vamp:name             "Spectral Centroid" ;
+    dc:description        "Calculate the centroid frequency of the spectrum of the input signal" ;
+    foaf:maker            [ foaf:name "Vamp SDK Example Plugins"] ; # FIXME could give plugin author's URI here
+    cc:license            <FIXME license for the plugin> ; 
+    vamp:identifier       "spectralcentroid" ;
+    vamp:vamp_API_version vamp:api_version_1 ;
+    owl:versionInfo       "2" ;
+    vamp:input_domain     vamp:FrequencyDomain ;
+
+
+    vamp:output_descriptor      plugbase:spectralcentroid_output_logcentroid ;
+    vamp:output_descriptor      plugbase:spectralcentroid_output_linearcentroid ;
+    .
+plugbase:spectralcentroid_output_logcentroid a  vamp:DenseOutput ;
+    vamp:identifier       "logcentroid" ;
+    dc:title              "Log Frequency Centroid" ;
+    dc:description        "Centroid of the log weighted frequency spectrum"  ;
+    vamp:fixed_bin_count  "true" ;
+    vamp:unit             "Hz" ;
+    vamp:bin_count        1 ;
+    vamp:bin_names        ( "");
+    vamp:computes_feature_type  <FIXME feature type URI> ;
+    vamp:computes_event_type    <FIXME event type URI> ;
+    .
+plugbase:spectralcentroid_output_linearcentroid a  vamp:DenseOutput ;
+    vamp:identifier       "linearcentroid" ;
+    dc:title              "Linear Frequency Centroid" ;
+    dc:description        "Centroid of the linear frequency spectrum"  ;
+    vamp:fixed_bin_count  "true" ;
+    vamp:unit             "Hz" ;
+    vamp:bin_count        1 ;
+    vamp:bin_names        ( "");
+    vamp:computes_feature_type  <FIXME feature type URI> ;
+    vamp:computes_event_type    <FIXME event type URI> ;
+    .
+plugbase:zerocrossing a   vamp:Plugin ;
+    dc:title              "Zero Crossings" ;
+    vamp:name             "Zero Crossings" ;
+    dc:description        "Detect and count zero crossing points" ;
+    foaf:maker            [ foaf:name "Vamp SDK Example Plugins"] ; # FIXME could give plugin author's URI here
+    cc:license            <FIXME license for the plugin> ; 
+    vamp:identifier       "zerocrossing" ;
+    vamp:vamp_API_version vamp:api_version_1 ;
+    owl:versionInfo       "2" ;
+    vamp:input_domain     vamp:TimeDomain ;
+
+
+    vamp:output_descriptor      plugbase:zerocrossing_output_counts ;
+    vamp:output_descriptor      plugbase:zerocrossing_output_zerocrossings ;
+    .
+plugbase:zerocrossing_output_counts a  vamp:DenseOutput ;
+    vamp:identifier       "counts" ;
+    dc:title              "Zero Crossing Counts" ;
+    dc:description        "The number of zero crossing points per processing block"  ;
+    vamp:fixed_bin_count  "true" ;
+    vamp:unit             "crossings" ;
+    a                     vamp:QuantizedOutput ;
+    vamp:quantize_step    1  ;
+    vamp:bin_count        1 ;
+    vamp:bin_names        ( "");
+    vamp:computes_feature_type  <FIXME feature type URI> ;
+    vamp:computes_event_type    <FIXME event type URI> ;
+    .
+plugbase:zerocrossing_output_zerocrossings a  vamp:SparseOutput ;
+    vamp:identifier       "zerocrossings" ;
+    dc:title              "Zero Crossings" ;
+    dc:description        "The locations of zero crossing points"  ;
+    vamp:fixed_bin_count  "true" ;
+    vamp:unit             "" ;
+    a                     vamp:QuantizedOutput ;
+    vamp:quantize_step    1  ;
+    vamp:bin_count        0 ;
+    vamp:bin_names        ();
+    vamp:sample_type      vamp:VariableSampleRate ;
+    vamp:sample_rate      44100 ;
+    vamp:computes_feature_type  <FIXME feature type URI> ;
+    vamp:computes_event_type    <FIXME event type URI> ;
+    .
+
diff -r afd60ff5ceef -r 0f72cadc5cc8 examples/vamp-example-plugins.rdf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/vamp-example-plugins.rdf	Mon Jun 23 16:10:37 2008 +0000
@@ -0,0 +1,238 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rdf:RDF xmlns:af="http://purl.org/ontology/af/" xmlns:cc="http://web.resource.org/cc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:plugbase="http://vamp-plugins.org/rdf/plugins/vamp-example-plugins#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:vamp="http://purl.org/ontology/vamp/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" xml:base="http://vamp-plugins.org/rdf/plugins/vamp-example-plugins#">
+  <vamp:PluginDescription rdf:about="">
+    <foaf:maker rdf:resource="blah"/>
+    <foaf:maker rdf:resource="http://www.vamp-plugins.org/doap.rdf#template-generator"/>
+    <foaf:primaryTopic rdf:resource=""/>
+  </vamp:PluginDescription>
+  <vamp:PluginLibrary rdf:about="#vamp-example-plugins">
+    <vamp:identifier>vamp-example-plugins</vamp:identifier>
+    <vamp:available_plugin rdf:resource="#amplitudefollower"/>
+    <vamp:available_plugin rdf:resource="#percussiononsets"/>
+    <vamp:available_plugin rdf:resource="#spectralcentroid"/>
+    <vamp:available_plugin rdf:resource="#zerocrossing"/>
+  </vamp:PluginLibrary>
+  <vamp:Plugin rdf:about="#amplitudefollower">
+    <dc:title>Amplitude Follower</dc:title>
+    <vamp:name>Amplitude Follower</vamp:name>
+    <dc:description>Track the amplitude of the audio signal</dc:description>
+    <foaf:maker>
+      <rdf:Description>
+        <foaf:name>Vamp SDK Example Plugins</foaf:name>
+      </rdf:Description>
+    </foaf:maker>
+    <cc:license rdf:resource="FIXME license for the plugin"/>
+    <vamp:identifier>amplitudefollower</vamp:identifier>
+    <vamp:vamp_API_version rdf:resource="http://purl.org/ontology/vamp/api_version_1"/>
+    <owl:versionInfo>1</owl:versionInfo>
+    <vamp:input_domain rdf:resource="http://purl.org/ontology/vamp/TimeDomain"/>
+    <vamp:parameter_descriptor rdf:resource="#amplitudefollower_param_attack"/>
+    <vamp:parameter_descriptor rdf:resource="#amplitudefollower_param_release"/>
+    <vamp:output_descriptor rdf:resource="#amplitudefollower_output_amplitude"/>
+  </vamp:Plugin>
+  <vamp:ParameterDescriptor rdf:about="#amplitudefollower_param_attack">
+    <vamp:identifier>attack</vamp:identifier>
+    <dc:title>Attack time</dc:title>
+    <dc:format>s</dc:format>
+    <vamp:min_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</vamp:min_value>
+    <vamp:max_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:max_value>
+    <vamp:unit>s</vamp:unit>
+    <vamp:default_value rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">0.01</vamp:default_value>
+    <vamp:value_names rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+  </vamp:ParameterDescriptor>
+  <vamp:ParameterDescriptor rdf:about="#amplitudefollower_param_release">
+    <vamp:identifier>release</vamp:identifier>
+    <dc:title>Release time</dc:title>
+    <dc:format>s</dc:format>
+    <vamp:min_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</vamp:min_value>
+    <vamp:max_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:max_value>
+    <vamp:unit>s</vamp:unit>
+    <vamp:default_value rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">0.01</vamp:default_value>
+    <vamp:value_names rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+  </vamp:ParameterDescriptor>
+  <vamp:DenseOutput rdf:about="#amplitudefollower_output_amplitude">
+    <vamp:identifier>amplitude</vamp:identifier>
+    <dc:title>Amplitude</dc:title>
+    <dc:description></dc:description>
+    <vamp:fixed_bin_count>true</vamp:fixed_bin_count>
+    <vamp:unit>V</vamp:unit>
+    <vamp:bin_count rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:bin_count>
+    <vamp:bin_names>
+      <rdf:Description>
+        <rdf:first></rdf:first>
+        <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+      </rdf:Description>
+    </vamp:bin_names>
+    <vamp:computes_feature_type rdf:resource="FIXME feature type URI"/>
+    <vamp:computes_event_type rdf:resource="FIXME event type URI"/>
+  </vamp:DenseOutput>
+  <vamp:Plugin rdf:about="#percussiononsets">
+    <dc:title>Simple Percussion Onset Detector</dc:title>
+    <vamp:name>Simple Percussion Onset Detector</vamp:name>
+    <dc:description>Detect percussive note onsets by identifying broadband energy rises</dc:description>
+    <foaf:maker>
+      <rdf:Description>
+        <foaf:name>Vamp SDK Example Plugins</foaf:name>
+      </rdf:Description>
+    </foaf:maker>
+    <cc:license rdf:resource="FIXME license for the plugin"/>
+    <vamp:identifier>percussiononsets</vamp:identifier>
+    <vamp:vamp_API_version rdf:resource="http://purl.org/ontology/vamp/api_version_1"/>
+    <owl:versionInfo>2</owl:versionInfo>
+    <vamp:input_domain rdf:resource="http://purl.org/ontology/vamp/FrequencyDomain"/>
+    <vamp:parameter_descriptor rdf:resource="#percussiononsets_param_threshold"/>
+    <vamp:parameter_descriptor rdf:resource="#percussiononsets_param_sensitivity"/>
+    <vamp:output_descriptor rdf:resource="#percussiononsets_output_onsets"/>
+    <vamp:output_descriptor rdf:resource="#percussiononsets_output_detectionfunction"/>
+  </vamp:Plugin>
+  <vamp:ParameterDescriptor rdf:about="#percussiononsets_param_threshold">
+    <vamp:identifier>threshold</vamp:identifier>
+    <dc:title>Energy rise threshold</dc:title>
+    <dc:format>dB</dc:format>
+    <vamp:min_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</vamp:min_value>
+    <vamp:max_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">20</vamp:max_value>
+    <vamp:unit>dB</vamp:unit>
+    <vamp:default_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">3</vamp:default_value>
+    <vamp:value_names rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+  </vamp:ParameterDescriptor>
+  <vamp:ParameterDescriptor rdf:about="#percussiononsets_param_sensitivity">
+    <vamp:identifier>sensitivity</vamp:identifier>
+    <dc:title>Sensitivity</dc:title>
+    <dc:format>%</dc:format>
+    <vamp:min_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</vamp:min_value>
+    <vamp:max_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">100</vamp:max_value>
+    <vamp:unit>%</vamp:unit>
+    <vamp:default_value rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">40</vamp:default_value>
+    <vamp:value_names rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+  </vamp:ParameterDescriptor>
+  <vamp:SparseOutput rdf:about="#percussiononsets_output_onsets">
+    <vamp:identifier>onsets</vamp:identifier>
+    <dc:title>Onsets</dc:title>
+    <dc:description>Percussive note onset locations</dc:description>
+    <vamp:fixed_bin_count>true</vamp:fixed_bin_count>
+    <vamp:unit></vamp:unit>
+    <vamp:bin_count rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</vamp:bin_count>
+    <vamp:bin_names rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+    <vamp:sample_type rdf:resource="http://purl.org/ontology/vamp/VariableSampleRate"/>
+    <vamp:sample_rate rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">44100</vamp:sample_rate>
+    <vamp:computes_feature_type rdf:resource="FIXME feature type URI"/>
+    <vamp:computes_event_type rdf:resource="FIXME event type URI"/>
+  </vamp:SparseOutput>
+  <vamp:DenseOutput rdf:about="#percussiononsets_output_detectionfunction">
+    <vamp:identifier>detectionfunction</vamp:identifier>
+    <dc:title>Detection Function</dc:title>
+    <dc:description>Broadband energy rise detection function</dc:description>
+    <vamp:fixed_bin_count>true</vamp:fixed_bin_count>
+    <vamp:unit></vamp:unit>
+    <rdf:type rdf:resource="http://purl.org/ontology/vamp/QuantizedOutput"/>
+    <vamp:quantize_step rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:quantize_step>
+    <vamp:bin_count rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:bin_count>
+    <vamp:bin_names>
+      <rdf:Description>
+        <rdf:first></rdf:first>
+        <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+      </rdf:Description>
+    </vamp:bin_names>
+    <vamp:computes_feature_type rdf:resource="FIXME feature type URI"/>
+    <vamp:computes_event_type rdf:resource="FIXME event type URI"/>
+  </vamp:DenseOutput>
+  <vamp:Plugin rdf:about="#spectralcentroid">
+    <dc:title>Spectral Centroid</dc:title>
+    <vamp:name>Spectral Centroid</vamp:name>
+    <dc:description>Calculate the centroid frequency of the spectrum of the input signal</dc:description>
+    <foaf:maker>
+      <rdf:Description>
+        <foaf:name>Vamp SDK Example Plugins</foaf:name>
+      </rdf:Description>
+    </foaf:maker>
+    <cc:license rdf:resource="FIXME license for the plugin"/>
+    <vamp:identifier>spectralcentroid</vamp:identifier>
+    <vamp:vamp_API_version rdf:resource="http://purl.org/ontology/vamp/api_version_1"/>
+    <owl:versionInfo>2</owl:versionInfo>
+    <vamp:input_domain rdf:resource="http://purl.org/ontology/vamp/FrequencyDomain"/>
+    <vamp:output_descriptor rdf:resource="#spectralcentroid_output_logcentroid"/>
+    <vamp:output_descriptor rdf:resource="#spectralcentroid_output_linearcentroid"/>
+  </vamp:Plugin>
+  <vamp:DenseOutput rdf:about="#spectralcentroid_output_logcentroid">
+    <vamp:identifier>logcentroid</vamp:identifier>
+    <dc:title>Log Frequency Centroid</dc:title>
+    <dc:description>Centroid of the log weighted frequency spectrum</dc:description>
+    <vamp:fixed_bin_count>true</vamp:fixed_bin_count>
+    <vamp:unit>Hz</vamp:unit>
+    <vamp:bin_count rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:bin_count>
+    <vamp:bin_names>
+      <rdf:Description>
+        <rdf:first></rdf:first>
+        <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+      </rdf:Description>
+    </vamp:bin_names>
+    <vamp:computes_feature_type rdf:resource="FIXME feature type URI"/>
+    <vamp:computes_event_type rdf:resource="FIXME event type URI"/>
+  </vamp:DenseOutput>
+  <vamp:DenseOutput rdf:about="#spectralcentroid_output_linearcentroid">
+    <vamp:identifier>linearcentroid</vamp:identifier>
+    <dc:title>Linear Frequency Centroid</dc:title>
+    <dc:description>Centroid of the linear frequency spectrum</dc:description>
+    <vamp:fixed_bin_count>true</vamp:fixed_bin_count>
+    <vamp:unit>Hz</vamp:unit>
+    <vamp:bin_count rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:bin_count>
+    <vamp:bin_names>
+      <rdf:Description>
+        <rdf:first></rdf:first>
+        <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+      </rdf:Description>
+    </vamp:bin_names>
+    <vamp:computes_feature_type rdf:resource="FIXME feature type URI"/>
+    <vamp:computes_event_type rdf:resource="FIXME event type URI"/>
+  </vamp:DenseOutput>
+  <vamp:Plugin rdf:about="#zerocrossing">
+    <dc:title>Zero Crossings</dc:title>
+    <vamp:name>Zero Crossings</vamp:name>
+    <dc:description>Detect and count zero crossing points</dc:description>
+    <foaf:maker>
+      <rdf:Description>
+        <foaf:name>Vamp SDK Example Plugins</foaf:name>
+      </rdf:Description>
+    </foaf:maker>
+    <cc:license rdf:resource="FIXME license for the plugin"/>
+    <vamp:identifier>zerocrossing</vamp:identifier>
+    <vamp:vamp_API_version rdf:resource="http://purl.org/ontology/vamp/api_version_1"/>
+    <owl:versionInfo>2</owl:versionInfo>
+    <vamp:input_domain rdf:resource="http://purl.org/ontology/vamp/TimeDomain"/>
+    <vamp:output_descriptor rdf:resource="#zerocrossing_output_counts"/>
+    <vamp:output_descriptor rdf:resource="#zerocrossing_output_zerocrossings"/>
+  </vamp:Plugin>
+  <vamp:DenseOutput rdf:about="#zerocrossing_output_counts">
+    <vamp:identifier>counts</vamp:identifier>
+    <dc:title>Zero Crossing Counts</dc:title>
+    <dc:description>The number of zero crossing points per processing block</dc:description>
+    <vamp:fixed_bin_count>true</vamp:fixed_bin_count>
+    <vamp:unit>crossings</vamp:unit>
+    <rdf:type rdf:resource="http://purl.org/ontology/vamp/QuantizedOutput"/>
+    <vamp:quantize_step rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:quantize_step>
+    <vamp:bin_count rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:bin_count>
+    <vamp:bin_names>
+      <rdf:Description>
+        <rdf:first></rdf:first>
+        <rdf:rest rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+      </rdf:Description>
+    </vamp:bin_names>
+    <vamp:computes_feature_type rdf:resource="FIXME feature type URI"/>
+    <vamp:computes_event_type rdf:resource="FIXME event type URI"/>
+  </vamp:DenseOutput>
+  <vamp:SparseOutput rdf:about="#zerocrossing_output_zerocrossings">
+    <vamp:identifier>zerocrossings</vamp:identifier>
+    <dc:title>Zero Crossings</dc:title>
+    <dc:description>The locations of zero crossing points</dc:description>
+    <vamp:fixed_bin_count>true</vamp:fixed_bin_count>
+    <vamp:unit></vamp:unit>
+    <rdf:type rdf:resource="http://purl.org/ontology/vamp/QuantizedOutput"/>
+    <vamp:quantize_step rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1</vamp:quantize_step>
+    <vamp:bin_count rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</vamp:bin_count>
+    <vamp:bin_names rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
+    <vamp:sample_type rdf:resource="http://purl.org/ontology/vamp/VariableSampleRate"/>
+    <vamp:sample_rate rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">44100</vamp:sample_rate>
+    <vamp:computes_feature_type rdf:resource="FIXME feature type URI"/>
+    <vamp:computes_event_type rdf:resource="FIXME event type URI"/>
+  </vamp:SparseOutput>
+</rdf:RDF>