| 1 Function | 2 Reference Model | 3 Input/Output Data |
| 4 SubAIMs | 5 JSON Metadata | 6 Profiles |
| 7 Reference Software | 8 Conformance Texting | 9 Performance Assessment |
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-ABS) AIM.
Figure 1 – The Basic Audio Scene Description (CAE-BAS) AIM
3 Input/Output Data
Table 1 specifies the Input and Output Data of the Basic Audio Scene Description (CAE-BAS) AIM.
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
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
The specifications of the CAE-BAS AIMs are provided at the links of Table 2.
Table 2 – AIMs of Basic Audio Scene Descriptors
| AIM | AIMs | Names | JSON |
| CAE-ABS | Basic Audio Scene Description | File | |
| CAE-AAT | Audio Analysis Transform | File | |
| CAE-ASL | Audio Source Localisation | File | |
| CAE-ASE | Audio Separation and Enhancement | File | |
| CAE-AST | Audio Synthesis Transform | File | |
| CAE-AMX | Audio Descriptors Multiplexing | File |
5 JSON Metadata
https://schemas.mpai.community/CAE1/V2.4/AIMs/BasicAudioSceneDescription.json
6 Profiles
No Profiles
7 Reference Software
8 Conformance Testing
Table 2 provides the Conformance Testing Method for the CAE-BAS AIM as a Basic AIM. Conformance Testing of the individual AIMs of the CAE-ABS Composite AIM are given by the individual AIM Specification.
If a schema contains references to other schemas, conformance of data for the primary schema implies that any data referencing a secondary schema shall also validate against the relevant schema, if present and conform with the Qualifier, if present.
Table 2 – Conformance Testing Method for 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. |
