{
  "definitions": {
    "gain_settings": {
      "type": "object",
        "properties": {
        "gain_db": { "type": "number" },
        "mute": { "type": "boolean" },
        "agc": { "type": "boolean" }
      },
      "required": ["gain_db", "mute", "agc"],
        "additionalProperties" : false
    }
  },

  "type": "object",
    "properties": {
    "gain": { "$ref": "#/definitions/gain_settings" },

    // ignore_device:
    //
    // When true, causes the mixer to completely ignore this device. The mixer
    // will close the device driver and not inform clients that it ever existed.
    "ignore_device": { "type": "boolean" },

    // disallow_auto_routing:
    //
    // When true, do not consider this device when applying automatic routing
    // policies. For example, if the audio routing policy is set to "last
    // plugged", and this device is the last plugged device, it will still not
    // be declared the "default" device, and it will not have AudioRenderer or
    // AudioCapturer streams automatically attached to it.
    "disallow_auto_routing": { "type": "boolean" }
  },
  "required": ["gain",
    "ignore_device",
    "disallow_auto_routing"],
    "additionalProperties" : false
}