1      Definition

A Data Type describing the Audio Objects and their spatial arrangement in an Audio Scene.

2      Functional Requirements

Audio Basic Scene Descriptors includes:

  1. The ID of a Virtual Space where they are or will be located.
  2. The ID of the Audio Scene Descriptors.
  3. The number of Audio Objects in the Scene.
  4. The Audio Scene Space-Time info.
  5. The Audio Objects including, for each Audio Object:
    1. The Audio Object Space-Time.
    2. The Audio Object Data.

3      Syntax

https://schemas.mpai.community/CAE1/V2.2/data/AudioBasicSceneDescriptors.json

4      Semantics

Label Size Description
Header N1 Bytes Audio Basic Scene Descriptors Header
– Standard-Audio Basic Scene 9 Bytes The characters “OSD-ABS-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.
AudioBasicSceneDescriptorsID N5 Bytes Identifier of the AV Object.
AudioObjectCount N6 Bytes Number of Objects in Scene.
AudioBasicSceneSpaceTime N7 Bytes Data about the Audio Scene’s Space-Time.
AudioBasicSceneDescriptorsData[] N8 Bytes Set of Audio Objects.
– AudioObjectSpaceTime N9 Bytes Space-Time info of Audio Object.
– AudioObjectData N10 Bytes  Audio Object Data.
DescrMetadata N11 Bytes Descriptive Metadata.