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7.19 AudioVariableType ToC Previous Next index

The AudioVariableType VariableType defines a Multipurpose Internet Mail Extensions (MIME) media type of the AudibleSound Property. MIME types are defined by other standards such as IETF RFC 2045, IETF RFC 2046 and IETF RFC 2047. The AudioVariableType references the Content-Type that is defined as part of the MIME type and commonly used as a reference to a specific MIME. The top-level media type is used to declare the general type of data, while the subtype specifies a specific format for that type of data. Thus, a media type of “audio /xyz” is a sufficient description for a user agent to determine the data is an audio file, even if the user agent has no knowledge of the specific audio format “xyz”.

The VariableType is formally defined in Table 84.

Table 84 – AudioVariableType definition

Attribute Value
BrowseName AudioVariableType
IsAbstract False
ValueRank −1 (−1 = Scalar)
DataType AudioDataType

Subtype of the BaseDataVariableType defined in 7.4

References NodeClass BrowseName DataType TypeDefinition Modelling Rule
HasProperty Variable ListId String PropertyType Optional
HasProperty Variable AgencyId String PropertyType Optional
HasProperty Variable VersionId String PropertyType Optional
Conformance Units          
Base Info Audio Type          

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