| 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-Visual Basic Scene Description (OSD-AVB):
| Receives | Space-Time. | of the Audio Visual Basic Scene. |
| Audio Objects. | In input. | |
| Speech Objects. | In input. | |
| Visual Objects. | In input. | |
| Audio-Visual Objects. | In input. | |
| Processes | All Objects. | |
| Creates | Audio, Speech, Visual, and Audio-Visual Scene Descriptors | From the Objects, if possible |
| Combines | The Scene Descriptors | Of all Objects. |
| Produces | Audio-Visual Scene Descriptors |
2 Reference Model
Figure 1 specifies the Reference Model of the Audio-Visual Basic Scene Description (OSD-AVB) AIM.
Figure 1 – The Audio-Visual Basic Scene Description (OSD-AVB) AIM
3 Input/Output Data
Table 1 specifies the Input and Output Data of the Audio-Visual Basic Scene Description (OSD-AVB).
Table 1 – I/O Data of the Audio-Visual Basic Scene Description (OSD-AVB) AIM
| Input | Description |
| SpaceTime | Space-Time information of Objects. |
| Audio Objects | Input Audio Objects. |
| Speech Objects | Input Speech Objects. |
| Visual Objects | Input Visual Objects. |
| Output | Description |
| Audio-Visual Scene Descriptors | The Audio-Visual Descriptors of the Scene. |
4 SubAIMs
Audio-Visual Basic Scene Description (OSD-AVB) is a Composite AIM whose reference Model is depicted in Figure 2.
Figure 2 – Reference Model of Audio-Visual Basic Scene Description Composite (OSD-AVB) AIM
Table 2 provides the AI Modules composing the AIM.
Table 2 – AI Modules of the Audio-Visual Basic Scene Description (OSD-AVB) AIM
| AIM | Acron. | AIMs | JSON |
| OSD-AVS | Audio-Visual Basic Scene Description | X | |
| CAE-ABS | Audio Basic Scene Description | X | |
| MMC-SBS | Speech Basic Scene Description | X | |
| OSD-VBS | Visual Basic Scene Description | X | |
| OSD-AV | Audio-Visual Alignment | X |
5 JSON Metadata
https://schemas.mpai.community/OSD/V1.2/AIMs/AudioVisualBasicSceneDescription.json
6 Profiles
No Profiles.
7 Reference Software
8 Conformance Testing
Table 3 provides the Conformance Testing Method for OSD-AVB AIM. Conformance Testing of the individual AIMs of the OSD-AVB 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 3 – Conformance Testing Method for OSD-AVB AIM
| Receives | Space-Time | Shall validate against Space-Time schema |
| Speech Objects | Shall validate against Speech Objects schema Speech Data shall conform with Qualifier |
|
| Audio Objects | Shall validate against Audio Objects schema Audio Data shall conform with Qualifier |
|
| Visual Objects | Shall validate against Visual Objects schema Visual Data shall conform with Qualifier |
|
| Audio-Visual Objects | Shall validate against Audio-Visual Objects schema Audio-Visual Data shall conform with Qualifier |
|
| Produces | Audio-Visual Scene Descriptors | Shall validate against AV Scene Descriptors schema |
9 Performance Assessment
