1 Definition
A Data Type including an Audio Scene’s:
- Audio Objects and their spatial arrangement.
- Audio Sub-Scenes and their spatial arrangement.
2 Functional Requirements
Audio Scene Descriptors include:
- The ID of a Virtual Space (M-Instance) where it is or will be located.
- The ID of the Audio Scene Descriptors.
- The number of Audio Objects in the Audio Scene.
- The number of Audio Sub-Scenes in the Audio Scene
- The Space-Time Attributes of the Audio Scene.
- The Audio Objects and their Spatial Attitudes.
- The Audio Sub-Scenes and their Spatial Attitudes.
Compared to Audio Basic Scene Descriptors, Audio Scene Descriptors additionally include Audio Sub-Scenes.
3 Syntax
https://schemas.mpai.community/CAE1/V2.2/data/AudioSceneDescriptors.json
4 Semantics
Label | Size | Description |
Header | N1 Bytes | Audio Scene Descriptors Header |
– Standard | 9 Bytes | The characters “OSD-ASD-V” |
– Version | N2 Bytes | Major version – 1 or 2 characters |
– Dot-separator | 1 Byte | The character “.” |
– Subversion | N3 Bytes | Minor version – 1 or 2 characters |
MInstanceID | N4 Bytes | Identifier of M-Instance. |
AudioSceneDescriptorsID | N5 Bytes | Identifier of the Audio Scene Descriptors. |
AudioSceneSpaceTime | N6 Bytes | Space-Time of Audio Scene. |
AudioObjectCount | N7 Bytes | # of Audio Objects in Audio Scene |
AudioObjects[] | N8 Bytes | Set of Audio Objects in Audio Scene |
– AudioObjectData | N9 Bytes | Audio Object not belonging to an Audio Sub-Scene. |
– AudioObjectSpaceTime | N10 Bytes | Audio Object’s Space-Time info. |
AudioSubSceneCount | N11 Bytes | # of Audio Sub-Scenes in Audio Scene |
AudioSubScenes[] | N12 Bytes | Set of Audio Sub-Scenes in Audio Scene |
– AudioSubSceneData | N13 Bytes | Data of Audio Sub-Scene |
– AudioSubSceneSpaceTime | N14 Bytes | Audio Sub-Scene’s Space-Time info |
DescrMetadata | N15 Bytes | Descriptive Metadata |