(Tentative)

Definition Functional Requirements Syntax Semantics

Definition

Audio Spatial Directive (PGM-ASD)

  1. Is produced by the Domain Access (DA) AIM.
  2. Provides referential cues, User intent, and contextual constraints to guide interpretation of audio scenes.
  3. Enables Audio Spatial Reasoning (ASR) to resolve ambiguous entities, assess auditory relevance, and generate expressive primitives aligned with the A-User’s interaction goals.

Functional Requirements

Audio Spatial Directive conveys the following main information elements:

Function Description
Referential Cueing Specifies which audio objects or roles are contextually relevant
Intent Framing Reflects A-User goals (e.g., highlight soloist, suppress ambient sounds)
Contextual Constraints Includes time windows, salience thresholds, or annotation filters
Interpretive Guidance Steers ASR toward resolving ambiguity or refining semantic tags
Traceability Includes AudioSpatialOutputID and MInstanceID for provenance and auditability

Syntax

https://schemas.mpai.community/PGM1/V1.0/data/AudioSpatialDirective.json

Semantics

Label Description
Header Audio Spatial Directive Header
├─ Standard-ASD The characters “PGM-ASD-V”
├─ Version Major version – 1 or 2 characters
├─ Dot-separator The character “.” separating version components
└─ Subversion Minor version – 1 or 2 characters
MInstanceID Identifier of the M-Instance
MEnvironmentID Identifier of the M-Environment
AudioSpatialOutputID Unique identifier of the Audio Spatial Output instance being interpreted
ReferentialObjects Audio object IDs or semantic roles to prioritise
IntentDescriptor Narrative or operational goal guiding ASR interpretation
ContextualConstraints Temporal, salience, and annotation filters
├─ TimeWindow Time range for interpretation (Start, End)
├─ SalienceThreshold Minimum salience score for inclusion
└─ AnnotationTypes Types of annotations to consider (e.g., expressive, functional)
Trace Provenance metadata
├─ Origin Module or subsystem that issued the directive (typically DAC)
└─ Timestamp Time of directive issuance
DescrMetadata Descriptive metadata for audit, indexing, or semantic linking