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Function
Ref. Model
I/O Data
SubAIMs
JSON MData
Profiles
Ref. Software
Conformance
Performance

1 Functions

Audio Basic Scene Description (CAE-BAS):

Receives Space-Time The Space-Time of the Audio Basic Scene.
Audio Object A generic input Audio Object.
Produces Basic Audio Scene Descriptors The Descriptors of the Basic Audio Scene.

CAE-BAS describes an Audio Scene in terms of its composing Audio Objects. See CAE-ASD

2 Reference Model

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

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

3 I/O Data

Table 1 – I/O Data of the Basic Audio Scene Description (CAE‑BAS) 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
Basic Audio Scene Descriptors Output Audio Scene Descriptors

4 SubAIMs

4.1 Reference Model

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

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

4.2 Operation

4.3 Functions of SubAIMs

4.4 I/O Data of SubAIMs

4.5 AIMs and JSON Metadata

Table 2 provides the links to the AIM specifications and JSON schemas. AIM1 indicates the Composite AIM and AIM2 its SubAIMs.

Table 2 – AIMs and JSON Metadata of the Basic Audio Scene Description (CAE‑BAS)

AIM1 AIM2 Name JSON
CAE‑BAS Basic Audio Scene Description X
CAE‑AAT Audio Analysis Transform X
CAE‑ASL Audio Source Localisation X
CAE‑ASE Audio Separation and Enhancement X
CAE‑AST Audio Synthesis Transform X
CAE‑AMX Audio Descriptors Multiplexing X

5 JSON Metadata

https://schemas.mpai.community/CAE1/V2.5/AIMs/BasicAudioSceneDescription.json

6 Profiles

No Profiles

7 Reference Software

8 Conformance Testing

Table 3 – Conformance Testing Method for the Basic Audio Scene Description (CAE‑BAS) AIM

Receives Space-Time Shall validate against Space-Time schema.
Audio Object Shall validate against Audio Object schema.
Audio Data shall conform with Audio Qualifier.
Produces Basic Audio Scene Descriptors Shall validate against Audio Basic Scene Descriptors schema.

9 Performance Assessment

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