CAE-USC V2.2 AIMs Audio Basic Scene Description

1     Functions

Audio Basic Scene Description (CAE-ABS):

Receives	Space-Time
	Audio Object
Detects	Audio Objects inside the input Audio Object
Computes	Audio Basic Scene Geometry
Produces	Audio Basic Scene Descriptors

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

2      Reference Architecture

Figure 1 depicts the Reference Architecture of the Audio Basic Scene Description (CAE-ABS) AIM.

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

3      I/O Data

Table 1 specifies the Input and Output Data of the Audio Basic Scene Description (CAE-ABS) AIM.

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

Input	Description
Space-Time	The Space-Time information of the Audio Basic Scene Descriptors.
Audio Object	Input Audio (with Qualifier about Microphone Array info)
Output	Description
Audio Basic Scene Descriptors	Output Audio Scene Descriptors

4      SubAIMs

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

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

The specifications of the CAE-ABS Basic AIMs are provided at the links of 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-AMX	Audio Descriptors Multiplexing

5     JSON Metadata

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

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