Go to MPAI-OSD Data Types

Definition Functional Requirements Syntax Semantics Conformance Testing Performance Assessment

1      Definition

A Data Type including the arrangement of the Speech Objects and the Speech Sub-Scenes in a scene.

2      Functional Requirements

A Speech Scene Geometry instance must include:

  1. The Speech Scene Geometry Header
  2. The ID of the Speech Scene Geometry.
  3. The ID and the Space-Time information of the Speech Objects in the Speech Scene.
  4. The ID and the Space-Time information of the Sub-Speech Scenes in the Speech Scene.

A Speech Scene Geometry instance may include:

  1. The ID of a Virtual Space (M-Instance) to which it refers.
  2. The ID of a U-Environment to which it refers.
  3. The Space-Time information of this Speech Scene Geometry instance.
  4. Information about this Speech Scene Geometry.
  5. Descriptive Metadata.

3      Syntax

https://schemas.mpai.community/OSD/V1.5/data/SpeechSceneGeometry.json

4      Semantics

Label Description
Header Speech Scene Geometry Header – Standard “OSD-SSG-Vx.y”
MInstanceID Identifier of the M-Instance.
UEnvironment Identifier of the U-Environment.
SpeechSceneGeometryID ID of this Speech Scene Geometry instance.
SpeechSceneGeometryTime Space and Time of Speech Scene Geometry.
SpeechSceneGeometrySpaceTime Space and Time of Speech Scene Geometry.
ObjectCount Number of Objects in Speech Scene.
SpeechSceneObjects[] Set of Data related to Speech Objects in the Speech Scene.
– SpeechSceneObjectSpaceTime Space and Time of a Speech Object in the Speech Scene.
– SpeechSceneObjectQualifier Qualifiers of the Speech Object in the Speech Scene.
SubSpeechSceneCount Number of Sub-Speech Scenes in the Speech Scene.
SubSpeechScenes[] Set of Data related to Speech Objects in the Speech Scene.
– SubOfflineMapSceneSpaceTime Space and Time of Sub-Speech Scene in the Speech Scene.
DataXMData Information on this Speech Scene Geometry instance.
DescrMetadata Descriptive Metadata

5     Conformance Testing

A Data instance Conforms with Speech Scene Geometry (OSD-SSG) if:

  1. The Data validates against the Speech Scene Geometry’s JSON Schema.
  2. All Data in the  Speech Scene Geometry’s JSON Schema
    1. Have the specified type
    2. Validate against their JSON Schemas
    3. Conform with their Data Qualifiers.

6     Performance Assessment