如何在Rivr Java VoiceXML库

时间:2015-09-20 23:37:09

标签: java voicexml rivr

我的VoiceXML提供程序Nexmo似乎没有处理根xml:lang="es-ES"中的vxml属性(这是由Rivr在我的对话框中生成context.setLanguage("es-ES")生成的)

我希望Nexmo使用西班牙语TTS引擎但是当我使用Rivr时,我无法看到我可以在哪里指定我希望“提示”包含,例如xml:lang="es-es-female",所以它会生成VoiceXML的:

<prompt xml:lang="es-es-female">
Hola.
</prompt>

interaction().addPrompt()只接受不允许(据我所知)语言选项的SpeechSynthesis对象。

我也尝试在SpeechSynthesis对象中包含SSML(正如我在Rivr Javadoc中看到的那样使用DocumentFragment),但这不起作用。可能Nexmo不支持SSML。

有任何变通方法吗? (改为更好的VoiceXML提供商的一部分) 非常感谢!!!

1 个答案:

答案 0 :(得分:2)

如果您只想在不收到用户输入的情况下播放消息,请使用Message类:

//Play a synthesis message in another language
Message message = new Message("synthesis-french-message",
                      new SpeechSynthesis("Ceci est un message."));

message.setLanguage("fr-CA");
DialogueUtils.doTurn(message, context);

如果您需要在Interaction中指定提示语言,可以使用InteractionBuilder完成此操作。可以在setLanguage()方法之前使用addPrompt()方法。可以在同一个交互中使用多种语言:

Interaction interaction = OutputTurns.interaction("multilingual-interaction")
        .setLanguage("es-ES")
        .addPrompt(new SpeechSynthesis("Holá."))
        .setLanguage("fr-CA")
        .addPrompt(new SpeechSynthesis("Bonjour."))
        .build(new SpeechRecognition(new GrammarReference("grammar.grxml")),
               Duration.seconds(2));

DialogueUtils.doTurn(interaction, context);

如果您不想使用构建器,可以手动完成,但需要更长时间:

List<Interaction.Prompt> prompts = new ArrayList<Interaction.Prompt>();

Interaction.Prompt spanishPrompt = new Interaction.Prompt(new SpeechSynthesis("Holá."));
spanishPrompt.setLanguage("es-ES");
prompts.add(spanishPrompt);

Interaction.Prompt frenchPrompt = new Interaction.Prompt(new SpeechSynthesis("Bonjour."));
frenchPrompt.setLanguage("fr-CA");
prompts.add(frenchPrompt);

SpeechRecognition speechRecognition = new SpeechRecognition(new GrammarReference("grammar.grxml"));

FinalRecognitionWindow finalRecognitionWindow = new FinalRecognitionWindow(speechRecognition,
                                                                           Duration.seconds(2));
Interaction interaction2 = new Interaction("multilingual-interaction2",
                                           prompts,
                                           finalRecognitionWindow);

DialogueUtils.doTurn(interaction2, context);

输出VoiceXML是:

<?xml version="1.0" encoding="UTF-8"?>
<vxml application="/rivr-cookbook-message-language/dialogue/root/efe10575-1766-48fb-9e13-572a771bc5f4" version="2.1"
  xmlns="http://www.w3.org/2001/vxml">
  <script>application.rivr.localErrorHandling = false; application.rivr.inputTurn = {};</script>
  <form id="form">
    <block name="prompt0">
      <prompt bargein="false" xml:lang="es-ES">Holá.</prompt>
    </block>
    <block name="prompt1">
      <prompt bargein="false" xml:lang="fr-CA">Bonjour.</prompt>
    </block>
    <field name="recognition">
      <grammar mode="voice" src="grammar.grxml" />
      <property name="timeout" value="2000ms" />
    </field>
    <filled mode="any">
      <script>application.rivr.addRecognitionResult()</script>
      <goto next="#submitForm" />
    </filled>
  </form>
  <catch>
    <if cond="_event.substring(0, 5) == &quot;error&quot;">
      <if cond="application.rivr.localErrorHandling">
        <goto next="#fatalErrorForm" />
        <else />
        <script>application.rivr.localErrorHandling=true</script>
      </if>
    </if>
    <script>application.rivr.addEventResult(_event, _message)</script>
    <goto next="#submitForm" />
  </catch>
  <form id="fatalErrorForm">
    <block>
      <exit />
    </block>
  </form>
  <form id="submitForm">
    <block>
      <var expr="application.rivr.toJson(application.rivr.inputTurn)" name="inputTurn" />
      <if cond="application.rivr.hasRecording(application.rivr.inputTurn)">
        <var expr="application.rivr.inputTurn.recordingMetaData.data" name="recording" />
        <assign expr="undefined" name="application.rivr.inputTurn.recordingMetaData.data" />
        <submit enctype="multipart/form-data" method="post" namelist="inputTurn recording"
          next="/rivr-cookbook-message-language/dialogue/efe10575-1766-48fb-9e13-572a771bc5f4/0/multilingual-interaction2" />
        <else />
        <submit method="post" namelist="inputTurn"
          next="/rivr-cookbook-message-language/dialogue/efe10575-1766-48fb-9e13-572a771bc5f4/0/multilingual-interaction2" />
      </if>
    </block>
  </form>
</vxml>