Web Speech API语法是否暴露给开发人员？

问题描述

我目前在Webkit语音识别上做了一些RnD，我想创建一个特定于应用程序的语法文件。
根据W3C定义，我写了下面的代码。但它似乎并没有显示出对这些词的认可有了改进的结果。您可以提供一些帮助。

var recognition = new webkitSpeechRecognition（）;
recognition.grammars.addFromUri（voice / api_grammar / weight.grxml）;

语法文件是一个简单的文件，如下所示。

 <？xml version =1.0encoding =UTF-8？> 
 
<！DOCTYPE grammar PUBLIC -  // W3C // DTD GRAMMAR 1.0 // EN
http://www.w3.org/TR/speech-grammar/grammar .dtd> 
 
  xmlns =http://www.w3.org/2001/06/grammar
 xmlns：xsi =http： //www.w3.org/2001/XMLSchema-instance
 xsi：schemaLocation =http://www.w3.org/2001/06/grammar 
 http：//www.w3。 org / TR / speech-grammar / grammar.xsd
 xml：lang =en-USmode =voiceroot =sequence> 
 
< meta name ='description'content ='使用示例的示例'/> 
 
< meta name ='in.1'content ='sunny Yorktown Heights New York United States'/> 
  
 
 
 
< rule id =ruleref> 
< example>Yorktown Heights< / example> 
< ruleref uri =＃token/> 
< / rule> 
 
< rule id =alternatives> 
< example> sunny< / example> 
<例子>多云< / example> 
< example> warm< / example> 
< example> cold< / example> 
< one-of> 
< item>晴天< / item> 
< item>阴天< / item> 
< item>温暖< / item> 
< item>冷< / item> 
< / one-of> 
< / rule> 
 
< rule id =repeat> 
< example>< / example> <！ -  for count = 0  - > 
< example> warm< / example> 
<示例>暖和晴天< / example> 
< item repeat =0-3> 
< ruleref uri =＃alternatives/> 
< / item> 
< / rule> 
 
< rule id =sequence> 
<示例> 
温暖晴朗多云Yorktown Heights纽约美国
< / example> 
<示例> 
温暖晴朗多云Yorktown Heights纽约United 
 States 
< / example> 
<示例> <！ - 这个例子实际上是错的，但这是合法的 - > 
温暖晴朗多云Yorktown Heights纽约美国
< / example> 
 
< ruleref uri =＃repeat/> < ruleref uri =＃ruleref/> 
< ruleref uri =＃Token/> < ruleref uri =＃TOKEN/> 
< / rule> 
 
< /语法> 
  

解决方案

虽然w3c指定了网络语音的语法，尚未由Chrome实施。

I am currently doing some RnD on Webkit Speech Recognition and I wanted to create an application specific grammar file.According W3C definition I wrote the following code. But it doesnt seem to show improved results in recognition for these words. Can you kindly provide some help with this.?

var recognition = new webkitSpeechRecognition();recognition.grammars.addFromUri("voice/api_grammar/weight.grxml");

The grammar file is a simple file which looked like the following.

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE grammar PUBLIC "-//W3C//DTD GRAMMAR 1.0//EN"
                  "http://www.w3.org/TR/speech-grammar/grammar.dtd">

<grammar version="1.0"
         xmlns="http://www.w3.org/2001/06/grammar"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xsi:schemaLocation="http://www.w3.org/2001/06/grammar 
                             http://www.w3.org/TR/speech-grammar/grammar.xsd"
         xml:lang="en-US" mode="voice" root="sequence">

  <meta name='description' content='Example using examples'/>

  <meta name='in.1' content='sunny Yorktown Heights New York United States'/>
  <meta name='out.1' content='$sequence[$repeat[$alternatives["sunny"]],$ruleref[$token["Yorktown Heights"]],$Token["New","York"],$TOKEN["United States"]]'/>




  <rule id="ruleref">
    <example>"Yorktown Heights"</example>
    <ruleref uri="#token"/>
  </rule>

  <rule id="alternatives">
    <example>sunny</example>
    <example>cloudy</example>
    <example>warm</example>
    <example>cold</example>
    <one-of>
      <item> sunny </item>
      <item> cloudy </item>
      <item> warm </item>
      <item> cold </item>
    </one-of>
  </rule>

  <rule id="repeat">
   <example></example> <!-- for count=0 -->
   <example>warm</example>
   <example>warm sunny cloudy</example>
   <item repeat="0-3">
      <ruleref uri="#alternatives"/>
   </item>
  </rule>

  <rule id="sequence">
    <example>
      warm sunny cloudy "Yorktown Heights" New York "United States"
    </example>
    <example>
      warm sunny cloudy   Yorktown   Heights   New York United
            States
    </example>
    <example> <!-- this example is actually wrong but that is legal -->
      warm sunny cloudy "Yorktown   Heights" New York "United States"
    </example>

    <ruleref uri="#repeat"/> <ruleref uri="#ruleref"/>
    <ruleref uri="#Token"/> <ruleref uri="#TOKEN"/>    
  </rule>

</grammar>

解决方案

Though w3c specified the grammar for web speech it is not yet implemented by the chrome.

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