PGM-AUA V1.0 AIMs – Audio Instance Identification

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

1 Functions

The Audio Instance Identification (PGM‑AII) AIM is a Sub‑AIM of Audio Scene Enhancement (PGM‑ASE). It identifies the Audio Objects of the scene and assigns them Audio Object Types, using classification models, domain knowledge, and Interaction History. It is the PGM‑AUA counterpart of Audio Object Identification (CAE‑AOI) of CAE‑USC V2.5, which receives Audio Objects and their Audio Scene Geometry and produces the Audio Instance Identifiers.

Each Sub‑AIM of Audio Scene Enhancement independently generates a Audio CXT Response, a Audio Domain Request and a Audio Interaction History Request. Enhanced Audio Multiplexing multiplexes them into the corresponding external output signals of Audio Scene Enhancement.

[High‑level specification derived from the Audio Scene Enhancement page. To be completed.]

The PGM‑AII AIM:

Receives	Audio CXT Request	Contextual directive specifying scope, depth, and policy constraints for audio enhancement.
	Audio Scene Descriptors	The initial Audio Scene Descriptors constructed by Audio Scene Description.
	Audio Domain Response	Domain‑specific knowledge supporting audio object classification and semantic interpretation.
	Audio Interaction History Response	Interaction History response, providing temporal context for scene understanding.
Produces	Audio CXT Response	Response reporting the processing outcome of this Sub‑AIM, multiplexed by Enhanced Audio Multiplexing into the Audio CXT Response of Audio Scene Enhancement.
	Audio Object Types	The semantic object‑type labels assigned to the Audio Objects of the scene.
	Audio Domain Request	Domain request issued by this Sub‑AIM, multiplexed by Enhanced Audio Multiplexing into the Audio Domain Request of Audio Scene Enhancement.
	Audio Interaction History Request	Interaction History request issued by this Sub‑AIM, multiplexed by Enhanced Audio Multiplexing into the Audio Interaction History Request of Audio Scene Enhancement.

2 Reference Model

Figure 1 depicts the Reference Model of the Audio Instance Identification (PGM‑AII) AIM.

[Figure 1 to be inserted.]

Figure 1 – Reference Model of the Audio Instance Identification (PGM‑AII) AIM

3 I/O Data

Table 1 specifies the Input and Output Data of the Audio Instance Identification (PGM‑AII) AIM.

Table 1 – Input and Output Data of the Audio Instance Identification (PGM‑AII) AIM

Input	Description
Audio CXT Request	Contextual directive specifying scope, depth, and policy constraints for audio enhancement.
Audio Scene Descriptors	The initial Audio Scene Descriptors constructed by Audio Scene Description.
Audio Domain Response	Domain‑specific knowledge supporting audio object classification and semantic interpretation.
Audio Interaction History Response	Interaction History response, providing temporal context for scene understanding.
Output	Description
Audio CXT Response	Response reporting the processing outcome of this Sub‑AIM, multiplexed by Enhanced Audio Multiplexing into the Audio CXT Response of Audio Scene Enhancement.
Audio Object Types	The semantic object‑type labels assigned to the Audio Objects of the scene.
Audio Domain Request	Domain request issued by this Sub‑AIM, multiplexed by Enhanced Audio Multiplexing into the Audio Domain Request of Audio Scene Enhancement.
Audio Interaction History Request	Interaction History request issued by this Sub‑AIM, multiplexed by Enhanced Audio Multiplexing into the Audio Interaction History Request of Audio Scene Enhancement.

4 SubAIMs

No SubAIMs.

5 JSON Metadata

https://schemas.mpai.community/PGM1/V1.0/AIMs/AudioInstanceIdentification.json

6 Profiles

No Profiles.

7 Reference Software

Not part of this specification.

8 Conformance Testing

Table 2 provides the Conformance Testing Method for the Audio Instance Identification (PGM‑AII) 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.

Table 2 – Conformance Testing Method for the Audio Instance Identification (PGM‑AII) AIM

Receives	Audio CXT Request	Shall validate against Audio CXT Request schema.
	Audio Scene Descriptors	Shall validate against Audio Scene Descriptors schema.
	Audio Domain Response	Shall validate against Audio Domain Response schema.
	Audio Interaction History Response	Shall validate against Audio Interaction History Response schema.
Produces	Audio CXT Response	Shall validate against Audio CXT Response schema.
	Audio Object Types	Shall validate against Audio Object Types schema.
	Audio Domain Request	Shall validate against Audio Domain Request schema.
	Audio Interaction History Request	Shall validate against Audio Interaction History Request schema.

9 Performance Assessment