求助：触发Chime事件时无法播放警报音频（Alexa.SecurityPanelController.Alert）

我正在按照Alexa官方文档指引，尝试在安防设备触发警报时通过Alexa播放自定义警报音频，目前遇到以下问题：

• Alexa应用中我的设备设置里没有音频播放设备配置的菜单入口
• 警报触发时，按要求发送Chime事件后，Alexa网关返回202状态码，但没有任何声音播放，设备日志中也无相关事件记录

设备发现响应内容 #

{
  "event": {
    "header": {
      "namespace": "Alexa.Discovery",
      "name": "Discover.Response",
      "messageId": "807271bc-177c-494c-bde9-f320e499f1a6",
      "payloadVersion": "3"
    },
    "payload": {
      "endpoints": [
        {
          "capabilities": [
            {
              "type": "AlexaInterface",
              "interface": "Alexa.SecurityPanelController.Alert",
              "version": "1.1",
              "properties": {
                "supported": [
                  {
                    "name": "sirenState"
                  }
                ],
                "proactivelyReported": true,
                "retrievable": true
              },
              "configuration": {
                "assets": [
                  {
                    "id": "b75ce6f5-1dbb-48d1-9863-7fb45444703b",
                    "url": "https://mywebsite.com/assets/public/audio/arm_sound.wav"
                  },
                  {
                    "id": "a4118533-5352-4918-b283-afc5fb6b1cd5",
                    "url": "https://mywebsite.com/assets/public/audio/beep.ogg"
                  }
                ],
                "playlists": [
                  {
                    "id": "cc2c1eb9-81eb-4d50-98c1-dc2d4fcd9e98",
                    "playOrder": [
                      {
                        "assetId": "b75ce6f5-1dbb-48d1-9863-7fb45444703b"
                      }
                    ]
                  }
                ],
                "alerts": [
                  {
                    "type": "SIREN",
                    "defaultPlaylistId": "cc2c1eb9-81eb-4d50-98c1-dc2d4fcd9e98"
                  }
                ]
              }
            },
            {
              "type": "AlexaInterface",
              "interface": "Alexa.SecurityPanelController",
              "version": "3",
              "properties": {
                "supported": [
                  {
                    "name": "armState"
                  },
                  {
                    "name": "burglaryAlarm"
                  }
                ],
                "proactivelyReported": true,
                "retrievable": true
              },
              "configuration": {
                "supportedArmStates": [
                  {
                    "value": "ARMED_AWAY"
                  },
                  {
                    "value": "ARMED_STAY"
                  },
                  {
                    "value": "DISARMED"
                  }
                ]
              }
            },
            {
              "type": "AlexaInterface",
              "interface": "Alexa.EndpointHealth",
              "version": "3.2",
              "properties": {
                "supported": [
                  {
                    "name": "connectivity"
                  }
                ],
                "proactivelyReported": true,
                "retrievable": true
              }
            },
            {
              "type": "AlexaInterface",
              "interface": "Alexa",
              "version": "3"
            }
          ],
          "description": "My alarm...",
          "displayCategories": [
            "SECURITY_PANEL"
          ],
          "endpointId": "659d0a3a6485cf4d09544f72",
          "friendlyName": "Office alarm",
          "manufacturerName": "My alarm"
        }
      ]
    }
  }
}

发送的Chime事件内容 #

{  
  "event": {
    "header": {
      "namespace": "Alexa.SecurityPanelController.Alert",
      "name": "Chime",
      "messageId": uuid.v4(),
      "payloadVersion": "3"
    },
    "endpoint": {
      "scope": {
        "type": "BearerToken",
        "token": user.alexaEventGateway.access_token
      },
      "endpointId": device._id.toString(),
    },
    "payload": {
      "playList": "cc2c1eb9-81eb-4d50-98c1-dc2d4fcd9e98",
      "timestamp": timeOfSample
    }
  },
  "context": {
      "properties": [
        {
            "namespace": "Alexa.SecurityPanelController.Alert",
            "name": "sirenState",
            "value": {
              "state": burglaryAlarm ? "ON":"OFF"
             },
            "timeOfSample": timeOfSample,
            "uncertaintyInMilliseconds": 0
        },
        {
          "namespace": "Alexa.SecurityPanelController",
          "name": "burglaryAlarm",
          "value": {
            "value": burglaryAlarm? 'ALARM':'OK'
          },
          "timeOfSample": timeOfSample,
          "uncertaintyInMilliseconds": 0
        },
        {
            "namespace": "Alexa.SecurityPanelController",
            "name": "armState",
            "value": this.device.armState,
            "timeOfSample": timeOfSample,
            "uncertaintyInMilliseconds": 0
        },
        {
          "namespace": "Alexa.EndpointHealth",
          "name": "connectivity",
          "value": {
            "value": "OK"
          },
          "timeOfSample": timeOfSample,
          "uncertaintyInMilliseconds": 0
        }
      ]
    }
}

内容的提问来源于stack exchange，提问作者matzrm