Question

我正在尝试在Microsoft Webchat中启用“文本到语音”选项，并使用了createBrowserWebSpeechPonyfillFactory选项。

如何更改此选项的声音？我想将女性声音用于“ en-US”，但始终使用男性声音播放。

尝试了下面的代码，但没有帮助

    async function speechServicesPonyfillFactory() {
        const speechServicesPonyfillFactory = await window.WebChat.createBrowserWebSpeechPonyfillFactory();

        return options => {

            const ponyfill = speechServicesPonyfillFactory(options);

            var speechSynthesisUtterance = ponyfill.SpeechSynthesisUtterance;
            var speechSynthesis = ponyfill.speechSynthesis;
            var voices = speechSynthesis.getVoices();

            speechSynthesisUtterance.voice = voices.filter(function(voice) { return voice.name == 'Microsoft Zira Desktop - English (United States)'; })[0];
            return {
                SpeechGrammarList: ponyfill.SpeechGrammarList,
                SpeechRecognition: ponyfill.SpeechRecognition,
                speechSynthesis: speechSynthesis,
                SpeechSynthesisUtterance: speechSynthesisUtterance
            }
    };
};

Answer 1

您可以通过selectVoice方法来支持Web聊天，以选择要使用的语音。请查看下面的代码片段和Select Voice网络聊天示例，以了解更多详细信息。另外，这是voices Web聊天支持的列表。

window.WebChat.renderWebChat(
  {
    directLine: window.WebChat.createDirectLine({ token }),
    selectVoice: (voices, activity) =>
      // If the activity is in zh-HK, use a voice with keyword "TracyRUS" (Cantonese).
      // Otherwise, use "JessaNeural" (preferred) or "Jessa".
      activity.locale === 'zh-HK'
        ? voices.find(({ name }) => /TracyRUS/iu.test(name))
        : voices.find(({ name }) => /JessaNeural/iu.test(name)) ||
          voices.find(({ name }) => /Jessa/iu.test(name)),
    webSpeechPonyfillFactory
  },
  document.getElementById('webchat')
);

希望这会有所帮助！

使用BrowserWebSpeech更改Webchat中的语音

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