网络聊天中的自适应卡片语音

Question

我创建了一个带有自适应卡片的机器人，并设置了说话属性。

AdaptiveCard card = new AdaptiveCard()
        {
            Body = new List<CardElement>()
            {
                new Container()
                {
                    Speak = "<s>Hello!</s><s>Are you looking for a flight or a hotel?</s>",
                    Items = new List<CardElement>()
                    {
                        new ColumnSet()
                        {
                            Columns = new List<Column>()
                            {
                                new Column()
                                {
                                    Size = ColumnSize.Auto,
                                    Items = new List<CardElement>()
                                    {
                                        new Image()
                                        {
                                            Url = "https://placeholdit.imgix.net/~text?txtsize=65&txt=Adaptive+Cards&w=300&h=300",
                                            Size = ImageSize.Medium,
                                            Style = ImageStyle.Person
                                        }
                                    }
                                },
                                new Column()
                                {
                                    Size = ColumnSize.Stretch,
                                    Items = new List<CardElement>()
                                    {
                                        new TextBlock()
                                        {
                                            Text =  "Hello!",
                                            Weight = TextWeight.Bolder,
                                            IsSubtle = true
                                        },
                                        new TextBlock()
                                        {
                                            Text = "Are you looking for a flight or a hotel?",
                                            Wrap = true
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            },
            // Buttons
            Actions = new List<ActionBase>() {
                new ShowCardAction()
                {
                    Title = "Hotels",
                    Speak = "<s>Hotels</s>",
                    Card = GetHotelSearchCard()
                },
                new ShowCardAction()
                {
                    Title = "Flights",
                    Speak = "<s>Flights</s>",
                    Card = new AdaptiveCard()
                    {
                        Body = new List<CardElement>()
                        {
                            new TextBlock()
                            {
                                Text = "Flights is not implemented =(",
                                Speak = "<s>Flights is not implemented</s>",
                                Weight = TextWeight.Bolder
                            }
                        }
                    }
                }
            }
        };

然后我从网络聊天控件和使用Microsoft Cognitive服务中使用此bot。这是集成代码： -

const speechOptions = {
    speechRecognizer: new CognitiveServices.SpeechRecognizer({ subscriptionKey: 'YOUR_COGNITIVE_SPEECH_API_KEY' }),
    speechSynthesizer: new CognitiveServices.SpeechSynthesizer({
      gender: CognitiveServices.SynthesisGender.Female,
      subscriptionKey: 'YOUR_COGNITIVE_SPEECH_API_KEY',
      voiceName: 'Microsoft Server Speech Text to Speech Voice (en-US, JessaRUS)'
    })
  };

我在这里使用我的认知服务API密钥。

Q.1）我通过语音调用自适应卡。我的期望是，当卡片交付时，它应该读出SSML标签内的内容。但这并没有发生。自适应卡只是在没有语音的情况下交付。

Q.2）对于通过context.PostAsync（）传递的任何文本内容，通过网络聊天大声朗读。但我希望只有在我们使用context.SayAsync（）时才能大声朗读。

请帮助我了解这种行为以及如何通过语音提供自适应卡。谢谢！