{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://schemas.mpai.community/OSD/V1.5/data/AudioVisualSceneDescriptors.json", "title": "Audio-Visual Scene Descriptors V1.5", "type": "object", "additionalProperties": false, "required": [ "Header", "AudioVisualSceneDescriptorsID", "AudioVisualSceneDescriptorsSpaceTime" ], "properties": { "Header": { "type": "string", "pattern": "^OSD-MSD-V[0-9]{1,2}[.][0-9]{1,2}$", "description": "AudioVisual Scene Descriptors Header – Standard OSD-MSD-Vx.y" }, "MInstanceID": { "type": "string", "description": "Identifier of the M-Instance (Virtual Space) where this AudioVisual Scene is or is intended to be located." }, "UEnvironmentID": { "type": "string", "description": "Identifier of the U-Environment (Real Space) where this AudioVisual Scene is or is intended to be located." }, "AudioVisualSceneDescriptorsID": { "type": "string", "description": "Unique identifier of this AudioVisual Scene Descriptors instance." }, "AudioVisualSceneDescriptorsTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Time this AudioVisual Scene Descriptors instance was produced." }, "AudioVisualSceneDescriptorsSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this AudioVisual Scene Descriptors instance is located." }, "AudioObjectCount": { "type": "integer", "minimum": 0, "description": "Number of Audio Objects in the AudioVisual Scene." }, "AudioObjects": { "type": "array", "minItems": 0, "description": "Set of Audio Objects in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "AudioObjectSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this Audio Object is located within the AudioVisual Scene." }, "AudioObject": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/AudioObject.json" }, { "type": "string" } ], "description": "Either an Audio Object or the ID of an Audio Object." } } } }, "SpeechObjectCount": { "type": "integer", "minimum": 0, "description": "Number of Speech Objects in the AudioVisual Scene." }, "SpeechObjects": { "type": "array", "minItems": 0, "description": "Set of Speech Objects in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "SpeechObjectSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this Speech Object is located within the AudioVisual Scene." }, "SpeechObject": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SpeechObject.json" }, { "type": "string" } ], "description": "Either a Speech Object or the ID of a Speech Object." } } } }, "VisualObjectCount": { "type": "integer", "minimum": 0, "description": "Number of Visual Objects in the AudioVisual Scene." }, "VisualObjects": { "type": "array", "minItems": 0, "description": "Set of Visual Objects in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "VisualObjectSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this Visual Object is located within the AudioVisual Scene." }, "VisualObject": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/VisualObject.json" }, { "type": "string" } ], "description": "Either a Visual Object or the ID of a Visual Object." } } } }, "3DModelObjectCount": { "type": "integer", "minimum": 0, "description": "Number of 3D Model Objects in the AudioVisual Scene." }, "3DModelObjects": { "type": "array", "minItems": 0, "description": "Set of 3D Model Objects in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "3DModelObjectSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this 3D Model Object is located within the AudioVisual Scene." }, "3DModelObject": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/3DModelObject.json" }, { "type": "string" } ], "description": "Either a 3D Model Object or the ID of a 3D Model Object." } } } }, "AudioVisualObjectCount": { "type": "integer", "minimum": 0, "description": "Number of AudioVisual Objects in the AudioVisual Scene." }, "AudioVisualObjects": { "type": "array", "minItems": 0, "description": "Set of AudioVisual Objects in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "AudioVisualObjectSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this AudioVisual Object is located within the AudioVisual Scene." }, "AudioVisualObject": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/AudioVisualObject.json" }, { "type": "string" } ], "description": "Either an AudioVisual Object or the ID of an AudioVisual Object." } } } }, "SubAudioSceneCount": { "type": "integer", "minimum": 0, "description": "Number of Audio Sub-Scenes in the AudioVisual Scene." }, "SubAudioScenes": { "type": "array", "minItems": 0, "description": "Set of Audio Sub-Scenes in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "SubAudioSceneSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this Audio Sub-Scene is located within the AudioVisual Scene." }, "SubAudioScene": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/AudioSceneDescriptors.json" }, { "type": "string" } ], "description": "Either an Audio Scene Descriptors instance or its ID." } } } }, "SubSpeechSceneCount": { "type": "integer", "minimum": 0, "description": "Number of Speech Sub-Scenes in the AudioVisual Scene." }, "SubSpeechScenes": { "type": "array", "minItems": 0, "description": "Set of Speech Sub-Scenes in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "SubSpeechSceneSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this Speech Sub-Scene is located within the AudioVisual Scene." }, "SubSpeechScene": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SpeechSceneDescriptors.json" }, { "type": "string" } ], "description": "Either a Speech Scene Descriptors instance or its ID." } } } }, "SubVisualSceneCount": { "type": "integer", "minimum": 0, "description": "Number of Visual Sub-Scenes in the AudioVisual Scene." }, "SubVisualScenes": { "type": "array", "minItems": 0, "description": "Set of Visual Sub-Scenes in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "SubVisualSceneSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this Visual Sub-Scene is located within the AudioVisual Scene." }, "SubVisualScene": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/VisualSceneDescriptors.json" }, { "type": "string" } ], "description": "Either a Visual Scene Descriptors instance or its ID." } } } }, "Sub3DModelSceneCount": { "type": "integer", "minimum": 0, "description": "Number of 3D Model Sub-Scenes in the AudioVisual Scene." }, "Sub3DModelScenes": { "type": "array", "minItems": 0, "description": "Set of 3D Model Sub-Scenes in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "Sub3DModelSceneSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this 3D Model Sub-Scene is located within the AudioVisual Scene." }, "Sub3DModelScene": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/3DModelSceneDescriptors.json" }, { "type": "string" } ], "description": "Either a 3D Model Scene Descriptors instance or its ID." } } } }, "SubAudioVisualSceneCount": { "type": "integer", "minimum": 0, "description": "Number of AudioVisual Sub-Scenes in the AudioVisual Scene." }, "SubAudioVisualScenes": { "type": "array", "minItems": 0, "description": "Set of AudioVisual Sub-Scenes in the AudioVisual Scene.", "items": { "type": "object", "additionalProperties": false, "properties": { "SubAudioVisualSceneSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SimpleTime.json", "description": "Space/Time where/when this AudioVisual Sub-Scene is located within the AudioVisual Scene." }, "SubAudioVisualScene": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/AudioVisualSceneDescriptors.json" }, { "type": "string" } ], "description": "Either an AudioVisual Scene Descriptors instance or its ID." } } } }, "BasicAudioVisualSceneOrAudioVisualScene": { "type": "array", "minItems": 0, "description": "A mixed array of Basic AudioVisual Scene Descriptors and AudioVisual Scene Descriptors.", "items": { "oneOf": [ { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/BasicAudioVisualSceneDescriptors.json" }, { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/AudioVisualSceneDescriptors.json" } ] } }, "DataXMData": { "$ref": "https://schemas.mpai.community/PTF/V1.0/data/DataExchangeMetadata.json", "description": "MPAI-PTF Data Exchange Metadata providing provenance, authorisation, legal, security, and confidence information associated with this AudioVisual Scene Descriptors instance in a trusted data exchange context." }, "DescrMetadata": { "type": "string", "maxLength": 2048, "description": "Human-readable descriptive metadata of the AudioVisual Scene Descriptors instance (plain text, max 2048 characters)." } } }