CAE-USC V2.2 AIMs Audio Scene Description

1     Functions

Audio Scene Description (CAE-ASD):

Receives	Multichannel Audio
Computes	Audio Objets
	Audio Scene Geometry
Produces	Audio Scene Descriptors

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
Multichannel Audio	Input Audio (with associated Microphone Array info)
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 by Table 2.

Table 2 – BASIC AIMs of Audio Scene Descriptors

AIMs	Names
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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