schemas/scene.schema.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Spatial9Scene",
  "type": "object",
  "required": [
    "version",
    "bed",
    "objects",
    "constraints_applied"
  ],
  "properties": {
    "version": {
      "type": "string"
    },
    "bed": {
      "type": "object",
      "required": [
        "layout",
        "loudness_target_lufs",
        "room_preset"
      ],
      "properties": {
        "layout": {
          "type": "string",
          "enum": [
            "binaural",
            "5.1.4",
            "7.1.4",
            "iamf"
          ]
        },
        "loudness_target_lufs": {
          "type": "number"
        },
        "room_preset": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "objects": {
      "type": "array",
      "minItems": 1,
      "maxItems": 32,
      "items": {
        "type": "object",
        "required": [
          "id",
          "class",
          "az_deg",
          "el_deg",
          "dist_m",
          "width",
          "gain_db",
          "reverb_send",
          "early_reflections",
          "motion"
        ],
        "properties": {
          "id": {
            "type": "string"
          },
          "class": {
            "type": "string",
            "enum": [
              "lead_vocal",
              "back_vocal",
              "kick",
              "snare",
              "hihat",
              "bass",
              "drums_bus",
              "pad",
              "synth_lead",
              "guitar",
              "piano",
              "strings",
              "brass",
              "fx",
              "dialogue",
              "ambience",
              "other"
            ]
          },
          "az_deg": {
            "type": "number",
            "minimum": -180,
            "maximum": 180
          },
          "el_deg": {
            "type": "number",
            "minimum": -45,
            "maximum": 90
          },
          "dist_m": {
            "type": "number",
            "minimum": 0.5,
            "maximum": 15.0
          },
          "width": {
            "type": "number",
            "minimum": 0.0,
            "maximum": 1.0
          },
          "gain_db": {
            "type": "number",
            "minimum": -60,
            "maximum": 12
          },
          "reverb_send": {
            "type": "number",
            "minimum": 0.0,
            "maximum": 1.0
          },
          "early_reflections": {
            "type": "number",
            "minimum": 0.0,
            "maximum": 1.0
          },
          "motion": {
            "type": "array",
            "maxItems": 64,
            "items": {
              "type": "object",
              "required": [
                "t",
                "az_deg",
                "el_deg",
                "dist_m"
              ],
              "properties": {
                "t": {
                  "type": "number",
                  "minimum": 0.0,
                  "maximum": 1.0
                },
                "az_deg": {
                  "type": "number",
                  "minimum": -180,
                  "maximum": 180
                },
                "el_deg": {
                  "type": "number",
                  "minimum": -45,
                  "maximum": 90
                },
                "dist_m": {
                  "type": "number",
                  "minimum": 0.5,
                  "maximum": 15.0
                }
              },
              "additionalProperties": false
            }
          }
        },
        "additionalProperties": false
      }
    },
    "constraints_applied": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 64
    }
  },
  "additionalProperties": false
}