1     Definition 2     Functional Requirements 3     Syntax
4     Semantics 5    Conformance Testing 6     Performance Assessment

1      Definition

A Data Type including the Speech Objects’ Qualifiers and Time-Space arrangement in a Speech Scene.

2      Functional Requirements

Speech Basic Scene Geometry include:

  1. The ID of a Virtual Space (M-Instance) where the Speech Basic Scene is or will be located.
  2. The ID of the Speech Basic Scene Geometry.
  3. The number of Speech Objects in the Speech Basic Scene.
  4. The Space-Time of the Speech Basic Scene Geometry.
  5. For each Speech Object in the Speech Basic Scene:
    1. The Space-Time info.
    2. The Speech Object Qualifiers.

3      Syntax

https://schemas.mpai.community/MMC/V2.3/data/SpeechBasicSceneGeometry.json

4      Semantics

Label Size Description
Header N1 Bytes Speech Basic Scene Geometry Header
– Standard-SpeechSceneGeometry 9 Bytes The characters “MMC-SBG-V”
– Version N2 Bytes Major version – 1 or 2 characters
– Dot-separator 1 Byte The character “.”
– Subversion N3 Bytes Minor version – 1 or 2 characters.
MInstanceID N4 Bytes Identifier of M-Instance.
SpeechBasicSceneGeometryID N5 Bytes Identifier of the Speech Basic Scene Geometry.
SpeechObjectCount N6 Bytes Number of Speech Objects in Speech Basic Scene.
SpeechBasicSceneSpaceTime N8 Bytes Space and Time of Speech Basic Scene Geometry.
SpeechBasicSceneSpeechData[] N9 Bytes Set of Speech Data in the Scene.
– SpeechObjectSpaceTime N10 Bytes Space and Time of Speech Data.
– SpeechObjectQualifiers N12 Bytes Qualifiers of Speech Object.
DescrMetadata N17 Bytes Descriptive Metadata.

5     Conformance Testing

A Data instance Conforms with MPAI-MMC V2.3 Speech Basic Scene Geometry (MMC-SBG) if:

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

6     Performance Assessment