Functions
Ref. Architecture
I/O Data
SubAIMs
JSON Metadata
Profiles
Ref. Software
Conformance
Performance
1 Functions
The Audio Object Delivery (CAE-AOD) AIM:
| Receives | User Command | From the User. |
| Basic Audio Object or Audio Object | The Object to play. | |
| Basic Audio Scene Descriptors or Audio Scene Descriptors | The Scene to play. | |
| Produces | Basic Audio Object | What is played, delivered to a device, e.g., headphones or loudspeakers. |
Audio Object Delivery plays:
- a Basic Audio Object as it is or, when it states a User Point of View, heard from there, its Directional Patterns counting;
- an Audio Object as a Scene of its Basic Audio Objects, heard from its User Point of View;
- a Basic Audio Scene Descriptors or an Audio Scene Descriptors by Spatial Rendering from its User Point of View – each member from its own, if it has one: each source attenuated by distance and air, weighted by its Directional Patterns, and placed by direction, binaurally or on a loudspeaker layout.
2 Reference Model
Figure 1 depicts the Reference Model of the Audio Object Delivery (CAE-AOD) AIM.

Figure 1 – The Reference Model of the Audio Object Delivery (CAE-AOD) AIM
3 I/O Data
Table 1 specifies the Input and Output Data of the Audio Object Delivery (CAE-AOD) AIM.
| Input | Description |
| User Command | Instruction directing the operation of the CAE-AOD AIM. |
| Basic Audio Object or Audio Object | The Object to play. |
| Basic Audio Scene Descriptors or Audio Scene Descriptors | The Scene to play. |
| Output | Description |
| Basic Audio Object | What is played, as a Basic Audio Object, also delivered to the device. |
4 SubAIMs
No SubAIMs.
5 JSON Metadata
https://schemas.mpai.community/CAE3/V1.0/AIMs/AudioObjectDelivery.json
6 Profiles
No Profiles.
7 Reference Software
See Reference Software.
8 Conformance Testing
Table 2 provides the Conformance Testing Method for the Audio Object Delivery (CAE-AOD) AIM.
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.
| Receives | User Command | Shall validate against the User Command schema. |
| Basic Audio Object or Audio Object | Shall validate against the schema its Header names: Basic Audio Object or Audio Object. | |
| Basic Audio Scene Descriptors or Audio Scene Descriptors | Shall validate against the schema its Header names: Basic Audio Scene Descriptors or Audio Scene Descriptors. | |
| Produces | Basic Audio Object | Shall validate against the Basic Audio Object schema. |
9 Performance Assessment
Not part of this specification.