speech_rec_demo.vxml

<?xml version="1.0" encoding="utf-8"?>
<vxml xmlns="http://www.w3.org/2001/vxml" version="2.1">

<!--
This work is licensed under a Creative Commons License
To review this license, go to http://creativecommons.org/licenses/by-sa/3.0/us/
-->

<meta name="maintainer" content="[email protected]"  />

<!-- Set speech properties --> 
<property name="sensitivity" value="0.4"/>
<property name="confidencelevel" value="0.2"/>

<!-- Flags to control DTMF fall back -->
<var name="speakFood" expr="true"/>
<var name="pressFood" expr="true"/>

<form id="F_1">

<block>
  <prompt bargein="false">Welcome to the speech recognition demo.</prompt>
</block>

<nomatch>
  <log>*** NOMATCH Confidence level: <value expr="application.lastresult$.confidence"/> ***</log>
<log>*** NOMATCH Utterance: <value expr="application.lastresult$.utterance"/> ***</log>
<log>*** NOMATCH Interpretation: <value expr="application.lastresult$.interpretation"/> ***</log>
  <reprompt/>
</nomatch>

<nomatch count="2">
  <log>*** NOMATCH Confidence level: <value expr="application.lastresult$.confidence"/> ***</log>
  <log>*** TURN OFF SPEECH INPUT ***</log>
  <assign name="speakFood" expr="false"/>
</nomatch>

<field name="interest" type="boolean">
  <prompt>Are you interested in speech recognition?</prompt>
  <filled>
    <log>*** interest$.utterance: <value expr="interest$.utterance"/> ***</log>
    <log>*** interest$.inputmode: <value expr="interest$.inputmode"/>***</log>
    <log>*** interest$.interpretation: <value expr="interest$.interpretation"/>**</log>
    <log>*** interest$.confidence: <value expr="interest$.confidence"/>***</log>
    <log>*** interest: <value expr="interest"/>***</log>
  </filled>
</field>

<field name="sayFavorite" cond="speakFood">
  <prompt>Say the name of your favorite food. You can say pizza, steak or vegetables.</prompt>
  <grammar xml:lang="en-US" root="R_1" mode="voice">
    <rule id="R_1">
      <one-of>
        <item>pizza<tag>"1"</tag></item>
        <item>steak<tag>"2"</tag></item>
        <item>vegetables<tag>"3"</tag></item>
      </one-of>
    </rule>
  </grammar>
  <filled>
    <log>*** sayFavorite: <value expr="sayFavorite"/> ***</log>
    <assign name="pressFood" expr="false"/>
  </filled>
</field>

<field name="pressFavorite" cond="pressFood">
  <property name="inputmodes" value="dtmf"/>
  <prompt>Please select your favorite food. For pizza, press 1, steak press 2, vegetables press 3.</prompt>
  <grammar xml:lang="en-US" root="R_1" mode="dtmf">
    <rule id="R_1">
      <one-of>
        <item>1</item>
        <item>2</item>
        <item>3</item>
      </one-of>
    </rule>
  </grammar>
  <filled>
    <log>*** pressFavoriteorite: <value expr="pressFavorite"/> ***</log>
  </filled>
</field>

<block>
  <foreach array="application.lastresult$" item="i">
      <log>*** i.utterance: <value expr="i.utterance"/> ***</log>
      <log>*** i.inputmode: <value expr="i.inputmode"/>***</log>
      <log>*** i.interpretation: *<value expr="i.interpretation"/>**</log>
      <log>*** i.confidence: <value expr="i.confidence"/>***</log>
  </foreach>
</block>

<block>
  <prompt>Enjoy your lunch. Goodbye.</prompt>
  <exit/>
</block>

</form>

</vxml>