如何在Alexa Skill lambda函数中正确指定SSML？

我正在尝试制作一个Alexa技能,其中Alexa说的是用SSML标记的东西.我试图模仿这个回购中的例子,但我总是收到一个lambda响应

{
  ...
  "response": {
    "outputSpeech": {
      "type": "SSML",
      "ssml": " [object Object] "
    },
  ...
}

和Alexa字面上说"对象对象".

这是我输入到我的lambda函数(使用node.js):

var speechOutput = {
    type: "SSML",
    ssml: 'This  is not working',
};

this.emit(':tellWithCard', speechOutput, SKILL_NAME, "ya best not repeat after me.")

像这样设置speechOutput也不起作用:

var speechOutput = {
    type: "SSML",
    ssml: 'This  is not working',
};

index.js

'使用严格';

var Alexa = require('alexa-sdk');

var APP_ID = "MY_ID_HERE";
var SKILL_NAME = "MY_SKILL_NAME";

exports.handler = function(event, context, callback) {
    var alexa = Alexa.handler(event, context);
    alexa.APP_ID = APP_ID;
    alexa.registerHandlers(handlers);
    alexa.execute();
};

var handlers = {
    'LaunchRequest': function () {
        this.emit('Speaketh');
    },
    'MyIntent': function () {
        this.emit('Speaketh');
    },
    'Speaketh': function () {
        var speechOutput = {
            type: "SSML",
            ssml: 'This  is not working',
        };

        this.emit(':tellWithCard', speechOutput, SKILL_NAME, "some text here")
    }
};

任何人都知道我哪里出错了？

根据GitHub上response.js的alexa-sdk源代码,代码中的speechOutput对象应该是一个字符串.Response.js负责构建您尝试在代码中构建的响应对象:

this.handler.response = buildSpeechletResponse({
    sessionAttributes: this.attributes,
    output: getSSMLResponse(speechOutput),
    shouldEndSession: true
});

深入挖掘,buildSpeechletResponse()调用createSpeechObject(),它直接负责outputSpeech在Alexa Skills Kit响应中创建对象.

因此,对于没有高级SSML功能的简单响应,只需发送一个字符串作为第一个参数,:tell然后让alexa-sdk从那里处理它.

对于高级ssml功能(如暂停),请查看ssml-builder npm包.它允许您将响应内容包装在SSML中,而无需自己实现或硬编码SSML解析器.

用法示例:

var speech = new Speech();

speech.say('This is a test response & works great!');
speech.pause('100ms');
speech.say('How can I help you?');    
var speechOutput = speech.ssml(true);        
this.emit(':ask', speechOutput , speechOutput); 

此示例发出一个ask响应,其中语音输出和reprompt语音都设置为相同的值.SSML Builder将正确解析&符号(这是SSML中的无效字符)并在两个say语句之间暂停100ms暂停.

响应示例:

Alexa Skills Kit将为上面的代码发出以下响应对象:

{
  "outputSpeech": {
    "type": "SSML",
    "ssml": " This is a test response and works great!  How can I help you? "
  },
  "shouldEndSession": false,
  "reprompt": {
    "outputSpeech": {
      "type": "SSML",
      "ssml": " This is a test response and works great!  How can I help you? "
    }
  }
}

这是一个老问题,但我最近有一个类似的问题,并希望贡献一个不需要额外依赖的答案.

如上所述,speechOutput假设是一个字符串,所以alexa说"对象对象"的原因是因为它是一个json.

尝试如下处理程序

'Speaketh': function () {
    var speechOutput = 'This  should work';

    this.emit(':tellWithCard', speechOutput, SKILL_NAME, "some text here")
}

返回此响应

{ 
  ...
  "response": {
    "outputSpeech": {
    "ssml": " This  should work ",
    "type": "SSML"
  },
  ...
}