The Audio Commons Ontology

IRI:
https://w3id.org/ac-ontology/aco
Date :
2017/07/27 11:09:00
Current version :
Revision: 1.3.0
Other visualisation :
Ontology source - WebVowl

Abstract

The Audio Commons Ontology provides classes and properties for describing audio content, both musical and non-musical, on the Semantic Web. It is a specialisation of a bibliographic model called [Functional Requirements for Bibliographic Records (FRBR)](https://en.wikipedia.org/wiki/Functional_Requirements_for_Bibliographic_Records). Furthermore, it contains the generalisation of some concepts from the [Music Ontology](http://musicontology.com/).

Table of Content

  1. Introduction
  2. Classes
  3. Object Properties
  4. Data Properties
  5. Namespace Declarations

Introduction

The Audio Commons Ontology has been created in the context of the European project [Audio Commons](https://www.audiocommons.org/), which were aimed at favouring sharing and reuse of audio content (both of musical and non-musical nature), specially using [Creative Commons](https://creativecommons.org/) licenses. It is designed specifically to integrate access to multiple heterogeneously structured audio content providers. In particular the following ones have been considered in the project: - [Freesound](https://freesound.org/), a collaborative database of Creative Commons Licensed sounds; - [Jamendo](https://www.jamendo.com/), a music website for independent artists; - [Europeana Sounds](https://www.eusounds.eu/), a European project collecting and sharing data from several archives of sounds and sound-related media; - [Internet Archive](https://archive.org/), a non-profit library of millions of freely accessible media contents. ### The base model <center> ![A diagram showing the entities Work, Expression, Manifestation, Item](./img/FRBR-Group-1-entities-and-basic-relations.svg.png) </center> The Audio Commons ontology is based on [Functional Requirements for Bibliographic Records (FRBR)](https://en.wikipedia.org/wiki/Functional_Requirements_for_Bibliographic_Records), a bibliographic model designed for user tasks of retrieval and access in online library catalogues and bibliographic databases. FRBR distinguish the products of intellectual or artistic endeavor in four main classes: work, expression, manifestation, item. It is available as RDF vocabulary at https://vocab.org/frbr/core. For further information on FRBR, check the [standard](https://repository.ifla.org/handle/123456789/811). Another important model related to audio is the [Music Ontology](http://musicontology.com/), which is also based on the FRBR model. Our ontology is more generic than the Music Ontology but is interoperable with it to support the specificities of music-related audio content. The Audio Commons ontology works also in conjunction with - [Dublin Core](https://www.dublincore.org/specifications/dublin-core/dcmi-terms/) for basic metadata, - [EBU Core](https://www.ebu.ch/metadata/ontologies/ebucore/) for technical properties of audio files, - [SKOS](https://www.w3.org/TR/skos-primer/) to support taxonomic classifications, - [Creative Commons Licensing schema](https://creativecommons.org/ns) to represent media licensing, - [Event ontology](http://motools.sf.net/event/event.html) for the formalisation of events, - [Audio Features Ontology](https://w3id.org/afo/onto/) for the characterisation of audio features. ### Ontology overview ![A diagram showing the main classes of the Audio Commons ontology](./img/AC-Ontology-Skeleton.png) The figure above shows the most general classes and properties of the Audio Commons ontology and their relationship with classes of the FRBR and the Music Ontology: - **`ac:AudioExpression`**, the specific intellectual or artistic form that a work takes each time it is _realised_, in the audio domain, e.g., the recording or synthesis of music or sounds; - **`ac:AudioManifestation`**, the physical embodiment of an audio expression, e.g., a musical track, a sound, an album; - **`ac:AudioItem`**, a single exemplar of an audio manifestation, e.g., a copy of a CD or a specific media file. The FRBR class Work, representing a distinct intellectual or artistic creation on a more conceptual level, has not been specialised in Audio Commons. The Audio Commons ontology provides a generic schema for audio classification through the property **`ac:audioCategory`** that associates any audio expression, manifestation, or item to some generic **`ac:AudioCategory`**. These two terms can be specialised to provide spefic categorisations. ### Manifestations: audio clips and collections ![A diagram showing the main classes of the Audio Commons ontology](./img/AC-Ontology-Manifestation.png) The figure above shows classes and properties related to audio manifestations. An instance of **`ac:AudioClip`**, a subclass of `ac:AudioManifestation`, is any audio segment that has been published in some form or uploaded for consumption, for example, a track in a music label's repository or a sound in an audio repository, library or archive. The class **`ac:AudioCollection`**, another subclass of `ac:AudioManifestation`, is used to represent collections of audio clips. The class **`ac:AudioCollectionNode`** is used to represent single nodes of a collection, offering local information like the index in the collection and pointers to previous and next nodes. The separation between the collection node and its actual content (e.g., an `ac:AudioClip`) permits the same content to be shared in multiple collections. The content of each node of a collection is not limited to an `ac:AudioClip`, but may contain any `ac:AudioManifestation`. Collections can thus contain other collections to support specific cases, e.g. a mapping to the Music Ontology model where an `mo:Release` can contain multiple `mo:Record`(s) that can in turn contain multiple `mo:Track`(s). ### Items: audio files ![A diagram showing ac:Item class and related class and properties](./img/AC-Ontology-Item.png) An `ac:AudioItem` is a concrete exemplar of an audio manifestation. In our domain, the main exemplars are the actual audio files. The corresponding class **`ac:AudioFile`** is a subclass of `ac:AudioItem`. It is subclass of `ebu:MediaResource` too and the corresponging properties of EBU Core can be used to describe the file (e.g., `ebu:hasEncodingFormat`, `ebu:fileSize`). ### Expressions: audio signals ![A diagram showing ac:Expression class and related class and properties](./img/AC-Ontology-Expression.png) While `ac:AudioFile` represents a concrete file encoded in a certain format, **`ac:DigitalSignal`** is the representation of the corresponding digital signal. `ac:DigitalSignal` is a subclass of `ac:MusicalExpression`. The data properties `ac:sampleRate`, `ac:bitsPerSample`, and `ac:channels`, associate a signal with its basic features specific to digital representations. The property `ac:publicationOf` can be used to associate an `ac:AudioClip` with the corresponding digital signal. The property `ac:encodes` instead, associates an `ac:AudioFile` with the encoded digital signal. ### Events: recording/syntesis ![A diagram showing ac:SignalProduction class and related class and properties!](./img/AC-Ontology-SignalProduction.png) The description of temporal events is crucial to formalise and document transitions in the workflow of audio production and publication. The class `event:Event` of the Event Ontology is thus specialised for specific actions that are interesting for the audio domain. Using the `event:Event` class, details of an event such as its location in time and space, its factor and its products may be explicitly described. Moreover, events can be composed using the property `event:sub_event`, to build complex events. The class `ac:SignalProduction` represents the act of producing a `ac:Signal`, which could be either an `ac:AnalogSignal` or a `ac:DigitalSignal`. This is complemented by **`ac:Recording`**, representing the process of recording a sound (`ac:Sound`) or the product of **`ac:Synthesis`**, in case of artificially generated sounds. ### Events (continued): publication ![A diagram showing ac:Publication class and related class and properties!](./img/AC-Ontology-Publication.png) The event **`ac:AudioPublication`** represents the public release of a piece of work, e.g., the release of a new album by a band. ### Usage Example ![A diagram showing an example of ontology usage!](./img/AC_Example-AudioClip.png) The figure above shows an example of use of the Audio Commons ontology to represent a sound from the Freesound database. For simplicity only the classes `ac:AudioClip`, `ac:AudioFile`, and `ac:AudioCategory` are used in this case.

Classes

Analog signalc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AnalogSignal

is defined by
https://w3id.org/ac-ontology/aco
An analog signal.
has super-classes
Signalc
is disjoint with
Digital signalc

Any node but the firstc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioCollectionNonFirstNode

is defined by
https://w3id.org/ac-ontology/aco
A node that is not the first in the containing audio collection
has super-classes
Nodec
previous node exactly 1
is in domain of
previous node
is in range of
next node

Any node but the lastc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioCollectionNonLastNode

is defined by
https://w3id.org/ac-ontology/aco
A node that is not the last in the containing audio collection
has super-classes
Nodec
next node exactly 1
is in domain of
next node
is in range of
previous node

Audio categoryc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioCategory

is defined by
https://w3id.org/ac-ontology/aco
Any category that is used to classify audio content.
has super-classes
concept
is in range of
is in audio categoryop

Audio clipc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioClip

is defined by
https://w3id.org/ac-ontology/aco
An audio segment that has been somehow published or uploaded for consumption (e.g., a track in a music label's repository or a sound in an audio repository, library or archive).
has super-classes
Audio manifestationc
is in domain of
original file

Audio collectionc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioCollection

is defined by
https://w3id.org/ac-ontology/aco
A collection of audio manifestations (e.g., a sound pack, an album, a result set of a search over a repository of audio content). As an audio collection is an audio manifestation too, collections may be nested. An audio collection is composed of nodes.
has super-classes
Audio manifestationc
first node exactly 1
last node exactly 1
is in domain of
collection as list, first node, last node, member node

Audio expressionc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioExpression

is defined by
https://w3id.org/ac-ontology/aco
The specific intellectual or artistic form that a work takes each time it is “realized”, in the audio domain (e.g., the recording or synthesis of music or sounds).
has super-classes
expression
has sub-classes
Physical soundc, Signalc
is in domain of
published asop
is in range of
publication ofop

Audio filec back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioFile

is defined by
https://w3id.org/ac-ontology/aco
A concrete audio file (encoded in some format)
has super-classes
media resource
Audio itemc
is in domain of
audio MD5 checksumdp
is in range of
original file

Audio itemc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioItem

is defined by
https://w3id.org/ac-ontology/aco
A concrete exemplar of an audio manifestation (e.g., a copy of a CD or a specific media file).
has super-classes
item
has sub-classes
Audio filec
is in domain of
available item ofop, encodes, signal audio featureop, signal channelsdp, signal durationdp, signal sample ratedp
is in range of
available asop, is encoded byop

Audio manifestationc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioManifestation

is defined by
https://w3id.org/ac-ontology/aco
The physical embodiment of an audio expression (e.g., a musical track, a sound, an album).
has super-classes
manifestation
work
has sub-classes
Audio clipc, Audio collectionc
is in domain of
available asop, container nodeop, default container node, publication ofop
is in range of
authorop, available item ofop, compiledop, node content, publishedop, published asop, published audio manifestationop

Audio publicationc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioPublication

is defined by
https://w3id.org/ac-ontology/aco
The act of publishing some audio content as an audio manifestation.
has super-classes
event
is in domain of
published audio manifestationop

Digital signalc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#DigitalSignal

is defined by
https://w3id.org/ac-ontology/aco
A digital signal.
has super-classes
Signalc
is in domain of
bits per sampledp, channelsdp, is encoded byop, sample ratedp
is in range of
encodes
is disjoint with
Analog signalc

First nodec back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioCollectionFirstNode

is defined by
https://w3id.org/ac-ontology/aco
A node that is the first in the containing audio collection
has super-classes
Nodec
inverse first node exactly 1
is in range of
first node

Last nodec back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioCollectionLastNode

is defined by
https://w3id.org/ac-ontology/aco
A node that is the last in the containing audio collection
has super-classes
Nodec
inverse last node exactly 1
rest value rdf:nil
is in range of
last node

Nodec back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#AudioCollectionNode

is defined by
https://w3id.org/ac-ontology/aco
A node of an audio collection. It encapsulates the actual content (ac:nodeContent), the position in the collection (ac:nodeIndex), and links to the previous and following node in the collection (ac:previousNode and ac:nextNode).
has super-classes
list
first only Audio manifestationc
first exactly 1
rest exactly 1
node content exactly 1
node indexdp exactly 1
has sub-classes
Any node but the firstc, Any node but the lastc, First nodec, Last nodec
is in domain of
node content, node indexdp
is in range of
container nodeop, default container node, member node
is disjoint with
nil

Physical soundc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#Sound

is defined by
https://w3id.org/ac-ontology/aco
A subclass of AudioExpression, representing a (physical) sound.
has super-classes
Audio expressionc
is in range of
production fromop, recording ofop

Recordingc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#Recording

is defined by
https://w3id.org/ac-ontology/aco
The act of recording some sound to produce a signal.
has super-classes
Signal productionc
is in domain of
recording ofop

Signalc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#Signal

is defined by
https://w3id.org/ac-ontology/aco
A subclass of AudioExpression, representing a signal, for example a master signal produced by a performance and a recording.
has super-classes
Audio expressionc
has sub-classes
Analog signalc, Digital signalc
is in domain of
audio featureop
is in range of
produced signalop

Signal productionc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#SignalProduction

is defined by
https://w3id.org/ac-ontology/aco
The act of producing a signal (e.g., through a recording or a synthesis).
has super-classes
event
has sub-classes
Recordingc, Syntesisc
is in domain of
produced signalop, production fromop

Syntesisc back to ToC or Class ToC

IRI: https://w3id.org/ac-ontology/aco#Syntesis

is defined by
https://w3id.org/ac-ontology/aco
The act of synthesizing a signal.
has super-classes
Signal productionc

Object Properties

audio featureop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#audioFeature

is defined by
https://w3id.org/ac-ontology/aco
Associates a signal to an extracted audio feature.
has domain
Signalc
has range
audio feature
has sub-property chains

authorop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#author

is defined by
https://w3id.org/ac-ontology/aco
Used to relate a person or a group of people who authored an audio manifestation.
has domain
agent
has range
Audio manifestationc

available asop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#availableAs

is defined by
https://w3id.org/ac-ontology/aco
Relates an audio manifestation to an audio item (e.g., a media file).
has super-properties
exemplar
has sub-properties
original file
has domain
Audio manifestationc
has range
Audio itemc
is inverse of
available item ofop

available item ofop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#availableItemOf

is defined by
https://w3id.org/ac-ontology/aco
Relates an audio item (e.g., a media file) to the corresponding audio manifestation.
has super-properties
exemplar of
has domain
Audio itemc
has range
Audio manifestationc
is inverse of
available asop

collection as list back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#collectionAsList

is defined by
https://w3id.org/ac-ontology/aco
Convenience alias of ac:firstNode to attache an ac:AudioCollection to an rdf:List that holds the members

has characteristics : functional

has domain
Audio collectionc
has range
list

compiledop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#compiled

is defined by
https://w3id.org/ac-ontology/aco
Used to relate a person or a group of people who compiled an audio manifestation.
has domain
agent
has range
Audio manifestationc

container nodeop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#containerNode

is defined by
https://w3id.org/ac-ontology/aco
Associates an audio manifestation with the collection nodes that contain it.
has sub-properties
default container node
has domain
Audio manifestationc
has range
Nodec
is inverse of
node content

default container node back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#defaultContainerNode

is defined by
https://w3id.org/ac-ontology/aco
Associates an audio manifestation with a node in the default parent collection (e.g., a musical track to the album it has been published it), if there is such a thing.

has characteristics : functional

has super-properties
container nodeop
has domain
Audio manifestationc
has range
Nodec

encodes back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#encodes

is defined by
https://w3id.org/ac-ontology/aco
Associates a MusicalItem (a track on a particular CD, an audio file, a stream somewhere) to the signal it encodes.

has characteristics : functional

has domain
Audio itemc
has range
Digital signalc
is inverse of
is encoded byop

first node back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#firstNode

is defined by
https://w3id.org/ac-ontology/aco
Associates an audio collection to its first node.

has characteristics : functional

has super-properties
member node
has domain
Audio collectionc
has range
First nodec

homepageop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#homepage

is defined by
https://w3id.org/ac-ontology/aco
Links a sound, an artist, a record, etc. to a corresponding webpage.
has super-properties
is primary topic of
subject of
has domain
thingc
has range
document

imageop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#image

is defined by
https://w3id.org/ac-ontology/aco
Indicates a pictorial image (JPEG, GIF, PNG, Etc.) associated to a sound, an artist, a record, etc.
has super-properties
has related picture
depiction
has domain
thingc
has range
picture
image

is encoded byop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#isEncodedBy

is defined by
https://w3id.org/ac-ontology/aco
Associates a signal to a MusicalItem (a track on a particular CD, an audio file, a stream somewhere) that encodes it.
has domain
Digital signalc
has range
Audio itemc
is inverse of
encodes

is in audio categoryop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#audioCategory

is defined by
https://w3id.org/ac-ontology/aco
Classify some audio-related thing in a category.
has domain
thingc
has range
Audio categoryc

last node back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#lastNode

is defined by
https://w3id.org/ac-ontology/aco
Associates an audio collection to its last node.

has characteristics : functional

has super-properties
member node
has domain
Audio collectionc
has range
Last nodec

member node back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#memberNode

is defined by
https://w3id.org/ac-ontology/aco
Associates an audio collection to its nodes.

has characteristics : inverse functional

has sub-properties
first node, last node
has domain
Audio collectionc
has range
Nodec
has sub-property chains

next node back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#nextNode

is defined by
https://w3id.org/ac-ontology/aco
Associates a node with the next node in the collection.

has characteristics : functional

has super-properties
rest
has domain
Any node but the lastc
has range
Any node but the firstc

node content back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#nodeContent

is defined by
https://w3id.org/ac-ontology/aco
Associates a node with the actual content (an audio manifestation).

has characteristics : functional

has super-properties
first
has domain
Nodec
has range
Audio manifestationc
is inverse of
container nodeop

original file back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#originalFile

is defined by
https://w3id.org/ac-ontology/aco
Relates an audio clip to the original published audio file (if there is such thing).

has characteristics : functional

has super-properties
available asop
has domain
Audio clipc
has range
Audio filec

previous node back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#previousNode

is defined by
https://w3id.org/ac-ontology/aco
Associates a node with the previous node in the collection.

has characteristics : functional

has domain
Any node but the firstc
has range
Any node but the lastc

produced signalop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#producedSignal

is defined by
https://w3id.org/ac-ontology/aco
Associates a signal production event to the produced signal.
has domain
Signal productionc
has range
Signalc

production fromop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#productionFrom

is defined by
https://w3id.org/ac-ontology/aco
Associates a signal production act to a sound from which the signal was produced (e.g., if recording, the recorded sound).
has sub-properties
recording ofop
has domain
Signal productionc
has range
Physical soundc

publication ofop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#publicationOf

is defined by
https://w3id.org/ac-ontology/aco
Link a particular manifestation to the related expression (e.g., a signal or a sound).
has super-properties
embodiment of
has domain
Audio manifestationc
has range
Audio expressionc
is inverse of
published asop

publishedop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#published

is defined by
https://w3id.org/ac-ontology/aco
Used to relate a person or a group of people who published an audio manifestation.
has domain
agent
has range
Audio manifestationc

published asop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#publishedAs

is defined by
https://w3id.org/ac-ontology/aco
Link an expression to its publication as manifestation.
has super-properties
embodiment
has domain
Audio expressionc
has range
Audio manifestationc
is inverse of
publication ofop

published audio manifestationop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#publishedAudioManifestation

is defined by
https://w3id.org/ac-ontology/aco
Associates a publishing act to the audio manifestation.
has domain
Audio publicationc
has range
Audio manifestationc

recording ofop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#recordingOf

is defined by
https://w3id.org/ac-ontology/aco
Associates a recording act to the recorded (physical) sound.
has super-properties
production fromop
has domain
Recordingc
has range
Physical soundc

signal audio featureop back to ToC or Object Property ToC

IRI: https://w3id.org/ac-ontology/aco#signalAudioFeature

is defined by
https://w3id.org/ac-ontology/aco
Associates the signal encoded by an audio item to an extracted audio feature. Shortcut for ac:encodes/ac:audioFeature
has domain
Audio itemc
encodes exactly 1
has range
audio feature
has sub-property chains

Data Properties

audio MD5 checksumdp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#audioMd5

is defined by
https://w3id.org/ac-ontology/aco
MD5 checksum computed on the audio content of the file.

has characteristics : functional

has domain
Audio filec
has range
string

bits per sampledp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#bitsPerSample

is defined by
https://w3id.org/ac-ontology/aco
Associates a digital signal to the number of bits used to encode one sample.

has characteristics : functional

has domain
Digital signalc
has range
int

channelsdp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#channels

is defined by
https://w3id.org/ac-ontology/aco
Associates a signal to the number of channels it holds (mono → 1, stereo → 2).

has characteristics : functional

has domain
Digital signalc
has range
int
has sub-property chains

durationdp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#duration

is defined by
https://w3id.org/ac-ontology/aco
The duration of an audio clip or a signal in ms.

has characteristics : functional

has domain
has range
float
has sub-property chains

node indexdp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#nodeIndex

is defined by
https://w3id.org/ac-ontology/aco
Associates a node with its position in the collection.

has characteristics : functional

has domain
Nodec
has range
int

sample ratedp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#sampleRate

is defined by
https://w3id.org/ac-ontology/aco
Associates a digital signal to its sample rate.

has characteristics : functional

has domain
Digital signalc
has range
float
has sub-property chains

signal channelsdp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#signalChannels

is defined by
https://w3id.org/ac-ontology/aco
The number of channels the digital signal holds (mono → 1, stereo → 2). Shortcut for ac:encodes/ac:channels

has characteristics : functional

has domain
Audio itemc
encodes exactly 1
has range
int
has sub-property chains

signal durationdp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#signalDuration

is defined by
https://w3id.org/ac-ontology/aco
The duration of the signal in ms. Shortcut for ac:encodes/ac:duration

has characteristics : functional

has domain
Audio itemc
encodes exactly 1
has range
float
has sub-property chains

signal sample ratedp back to ToC or Data Property ToC

IRI: https://w3id.org/ac-ontology/aco#signalSampleRate

is defined by
https://w3id.org/ac-ontology/aco
The sample rate of the digital signal. Shortcut for ac:encodes/ac:sampleRate

has characteristics : functional

has domain
Audio itemc
encodes exactly 1
has range
float
has sub-property chains

Namespace Declarations back to ToC

1-1
https://w3id.org/afo/onto/1.1#
ac-ontology
https://w3id.org/ac-ontology/
aco
https://w3id.org/ac-ontology/aco#
cc
http://web.resource.org/cc/
core
http://purl.org/vocab/frbr/core#
dc
http://purl.org/dc/elements/1.1/
dct
http://purl.org/dc/terms/
ebucore
http://www.ebu.ch/metadata/ontologies/ebucore/ebucore#
event-owl
http://purl.org/NET/c4dm/event.owl#
foaf
http://xmlns.com/foaf/0.1/
mo
http://purl.org/ontology/mo/
owl
http://www.w3.org/2002/07/owl#
rdf
http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs
http://www.w3.org/2000/01/rdf-schema#
schema-org
https://schema.org/
v
http://purl.org/vocab/vann/
xmlschema
http://www.w3.org/2001/XMLSchema#

This HTML document was obtained by processing the OWL ontology source code through LODE, Live OWL Documentation Environment, developed by Silvio Peroni .