Vamp Plugins Ontology
Vamp Plugins Ontology
Vamp Ontology. This ontology includes the following descriptions:
- OWL description of the Vamp API
- OWL description of the Transform environment necessary to set up the execution of any plugin
This Ontology provides semantics to describe and control Vamp plugins in RDF. Any "RDF-speaker" host is therefore able to
use this ontology to read, set up and execute plugins.
The extracted features are expressed in terms of the Audio Features Ontology: http://purl.org/ontology/af/.
For more information, please visit the Vamp Plugins website: http://www.vamp-plugins.org/
Chris Cannam
Chris Sutton
Yves Raimond
David Pastor Escuredo
$Date: 2008/05/21 17:05:11 $
Vamp Plugin
A Vamp plugin is an implementation of an audio feature extraction algorithm using the Vamp API.
stable
Vamp Plugin Library
Library of Vamp Plugins. This may need to include rights.
stable
Vamp Plugin Parameter
Descriptor for a plugin parameter. Hosts need to know about the specific type and form of the parameters of a particular plugin for a correct transform setup.
stable
Quantized Parameter
Descriptor of a parameter that does have quantized values. The property quantize_step is just defined for this subclass and not for the general Parameter.
stable
Vamp Plugin output descriptor
Descriptor for an output of a plugin. This descriptor provides information that is necessary to correctly interpret the output features. The output type will determine how to read the temporal information of the extracted features and how to manage the burden of ouput data.
unstable
Quantized Output
Descriptor of an output that does have quantized values.
stable
Known Extents Output
Descriptor of an output that does have known extents.
stable
Dense output
Specific output type for data evenly spaced in time, which may be of high volume and which it is usually desirable to represent in a compact form.
unstable
Sparse output
Specific output type for data that consist of features that require their own individual temporal information.
unstable
track level output
Specific output type for track level information. The Vamp API does not provide for this sort of output directly, so this will require a "hacky" interpretation of the feature timestamp to establish that it reflects track metadata instead of temporal data.
unstable
Plugin program
The program is a predefined context of parameters. We may not need a concept for this and just a property linking a string representing the program name.
unstable
Vamp Feature
This may be removed mighty soon as we rely on the Audio Features Ontology for this
deprecated
Plugin input domain
Plugins declare the input domain they require, so the host can convert the input data properly. Hosts using the Vamp SDK PluginAdapter to wrap plugins should see this work done for them automatically - see the Vamp documentation.
stable
sample type
The sample type specifies the temporal information of the plugin output. This information should be combined with the output type for a correct interpretation.
stable
parameter descriptor
Links each parameter descriptor to the plugin.
stable
output
Links each output type to the plugin.
stable
available plugin
Available plugins in the library
stable
plugin identifier
Machine-readable identifier for a Vamp plugin within the scope of its library, or for a plugin descriptor within the scope of the plugin.
stable
plugin name
Human-readable identifier for the plugin.
stable
Vamp API version
Version of the Vamp API used to implement this plugin.
stable
input domain
Input domain required by the plugin (time or frequency).
stable
max value
Maximum value of the parameter range
unstable
min value
Minimum value of the parameter range
unstable
default value
Default value of the parameter
unstable
quantized step
Quantize step. Only defined for quantized outputs
unstable
has duration
True if features on this output are known to have durations
unstable
unit
Unit of the output/parameter. A string type
unstable
value names
List of value names if available
unstable
fixed bin count
Fixed bin count. A boolean type.
unstable
sample rate
Sample rate of the output if any. Should be read depending on SampleType and Output classes.
unstable
bin count
Number of elements of the bin output. This information is necessary to define the output as belonging to a specific subclass of Plugin Output.
unstable
bin names
List of bin names if available.
unstable
sample type
The sample type specifies the temporal information of the output.
unstable
event type
Associates a plugin output with its corresponding event type (for example, in the Audio Features ontology).
unstable
feature type
Associates a plugin output with the attribute connecting the event to its value data.
unstable
signal type
Associates a dense plugin output with its corresponding signal type (for example, in the Audio Features ontology).
unstable
Transform
stable
The Transform defines the environment of any audio processing computation.
Parameter binding
unstable
Parameter setting used by the plugin transform to set up the plugin.
Configuration
unstable
For extension (key/value data provided to DSSI plugins, not relevant to Vamp)
Transform Type
unstable
Specifies the type of transform. May be feature extraction, effect...
Feature Extraction
unstable
Feature extraction transform. This may be just a subclass of Transform...
Effect
unstable
Effect transform. This may be just a subclass of Transform...
plugin
stable
Specifies the sort of plugin in execution. This is an extension to use Transform with other plugin libraries
program
stable
Specifies the program to set the plugin in execution. Here the plugin program matches with the one in the plugin descriptor. There is not descriptor required for the program (just a string), is it?
program
stable
Extension for configuration.
parameter
stable
Specifies the parameter to set the plugin in execution.
step size
stable
Specifies the step size for the framing.
block size
stable
Specifies the block size for the framing.
sample rate
stable
Specifies the sample rate if it is not constant.
transform type
unstable
Specifies the transform type (we could do this by subclassin transform instead of using a property).
window type
unstable
Specifies the window type (they should be individuals and clearly not here).
start
unstable
Specifies temporal information when processing a data stream.
start
unstable
Specifies temporal information when processing a data stream.
summary type
unstable
Specifies a summary type to be used (for averaging etc) on transform results.
value
stable
Specifies the current value of the parameter.
computed by
Associates an audio feature with the transform that was used to compute it.
unstable