bbc/radio-service-vocab

Name: radio-service-vocab

Owner: BBC

Description: A RDF vocabulary for describing Radio Stations

Created: 2016-08-08 18:03:25.0

Updated: 2016-08-10 12:30:09.0

Pushed: 2016-08-12 16:53:25.0

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README

radio-service-vocab

A RDF vocabulary for describing Radio Stations.

This document is Work in Progress and is still being updated.

It is heavily based on TS 103 270 - RadioDNS Hybrid Radio and TS 102 818 ? Service and Programme Information - aka RadioEPG. It is also influenced by the BBC Programmes Ontology.

Examples

• BBC 6 Music (a UK national, DAB only)
• BBC London (a Local service, single FM + DAB)
• BBC Five Live (a UK national, AM + DAB)
• BBC Radio Four (a UK national, multi-service, lots of FM frequencies, AM and DAB)
• BBC World Service (Shortwave with Amplitude modulation signalling system)
• KCSN (US local Radio Station on FM and HD Radio)

Entity Types

Service

An individual Radio Service, also known as a Radio Station.

Properties

| Property | Expected Type | Description | |————|—————|———————————————-| | shortName | Text | The name of the service (max 8 characters) | | mediumName | Text | The name of the service (max 16 characters) | | longName | Text | The name of the service (max 128 characters) | | genre | | | | keywords | | | | bearer | | A service should have one or more Bearers. |

Service Group

A grouping of Services, which share some commonality, such as a family of related services that are part of a brand, or regional variants of services with a common name.

Examples:

• BBC Radio Four (Radio Four FM, Radio Four AM)
• Capital (Capital London, Capital Manchester, Capital Yorkshire)

| Property | Expected Type | Description | |————|—————|————————————————-| | shortName | Text | The name of the service (max 8 characters) | | mediumName | Text | The name of the service (max 16 characters) | | longName | Text | The name of the service (max 128 characters) | | service | | A service that is a member of the service group |

Bearer

An individual transmission mechanism for a Radio Service. May be analogue, digital or an online stream. An analogue bearer must be on a single frequency, a digital bearer might be part of a multiplex.

Properties

| Property | Expected Type | Description | |———–|—————|——————————————————————————————————————————————————–| | cost | Integer | An indication of a relative 'cost' of acquiring the service from the service provider. | | mimeValue | Text | Indicates the MIME type (RFC 2045) of the audio carried by the bearer. | | bitrate | Integer | Bitrate of the audio carried by the bearer, in kilobits per second (kbps). | | offset | Integer | An indication of the offset given to the audio on this bearer by the service provider, in milliseconds relative to other bearers for the same service. |

BearerAM

Sub-class of a generic bearer for AM (Amplitude Modulation) broadcasts. AM radio stations typically broadcast in medium wave band but also in parts of the longwave and shortwave spectrum.

Properties

| Property | Expected Type | Description | |———–|—————|———————————————| | frequency | Integer | The frequency of the broadcast in kHz |

BearerDAB

Sub-class of a generic bearer for DAB (Digital Audio Broadcasting) and DAB+.

| Property | Expected Type | Description | |———–|—————|———————————————| | eid | Text | Ensemble / multiplex identifier | | gcc | Text | Global Country Code | | scids | Text | Service component identifier | | sid | Text | The service identifier |

BearerDRM

Sub-class of a generic bearer for DRM (Digital Radio Mondiale).

BearerFM

Sub-class of a generic bearer for FM (Frequency Modulation) broadcasts. FM radio stations use the VHF frequencies, typically in the range 87.5 to 108.0 MHz.

Properties

| Property | Expected Type | Description | |———–|—————|———————————————| | frequency | Float | The frequency of the broadcast in MHz | | gcc | Text | Global Country Code | | pi | Text | The RDF Programme Identifier in hex |

BearerIBOC

Sub-class of a generic bearer for IBOC (In-band on-channel), also known as HD Radio.

Properties

| Property | Expected Type | Description | |—————-|—————|————————————————| | frequency | Float | The frequency of the broadcast in MHz | | channel | Integer | The channel number | | transmissionId | Integer | In the US this is the FCC assigned facility ID |