CAE-USC V2.2 AIMs Audio Scene Description

1     Functions

Audio Scene Description (CAE-ASD):

Receives	Space-Time
	Audio Object
	Audio Scene Descriptors
Computes	Audio Objects
	Audio Scene Geometry
Adds	Audio Scene Descriptors (input)
Produces	Audio Scene Descriptors (output)

CAE-ASD can describe an Audio Scene in terms of its composing Audio Objects and Audio Scenes. See  CAE-ABS

2      Reference Architecture

Figure 1 depicts the Reference Architecture of the Audio Scene Description AIM.

Figure 1 – The Audio Scene Description (CAE-ASD) AIM

3      I/O Data

Table 1 specifies the Input and Output Data of the Audio Scene Description AIM.

Table 1 – I/O Data of the Audio Scene Description (CAE-ASD) AIM

Input	Description
Space-Time	Audio Objects Space-Time information.
AudioObject	Multichannel Audio (with associated Microphone Array info)
Audio Scene Descriptors	Input Audio Scene Descriptors
Output	Description
Audio Scene Descriptors	Output Audio Scene Descriptors

4      SubAIMs

Audio Scene Description (CAE-ASD) is a Composite AIM with the structure is depicted in Figure 2.

Figure 2 – The Audio Scene Description (CAE-ASD) Composite AIM

The specification of the CAE-ASD Basic AIMs are provided at the links of Table 2.

Table 2 – BASIC AIMs of Audio Scene Descriptors

AIW	AIMs	Names
CAE-ASD		Audio Scene Description
	CAE-AAT	Audio Analysis Transform
	CAE-ASL	Audio Source Localisation
	CAE-ASE	Audio Separation and Enhancement
	CAE-AST	Audio Synthesis Transform
	CAE-ADM	Audio Descriptors Multiplexing

5     JSON Metadata

https://schemas.mpai.community/CAE1/V2.2/AIMs/AudioSceneDescription.json

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