铁观音

      <prompt>Please say your city.</prompt>

      Please say your city.

      <audio src="say_your_city.wav"/>

      <prompt>Please <emphasis>say</emphasis> your city.</prompt>

      <prompt>

        Welcome to the Bird Seed Emporium.

        <audio src="rtsp://www.birdsounds.example.com/thrush.wav"/>

        We have 250 kilogram drums of thistle seed for

        <say-as interpret-as="currency">$299.95</say-as>

         plus shipping and handling this month.

        <audio src="http://www.birdsounds.example.com/mourningdove.wav"/>

      </prompt>

      <prompt>

        Your recorded greeting is

        <audio expr="greeting"/>

        To rerecord, press 1.

        To keep it, press pound.

        To return to the main menu press star M.

        To exit press star, star X.

      </prompt>

      <prompt>

        <audio src="welcome.wav">

        <emphasis>Welcome</emphasis> to the Voice Portal.

        </audio>

      </prompt>

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

      <vxml version="2.0" xmlns="http://www.w3.org/2001/vxml"

           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

             xsi:schemaLocation="http://www.w3.org/2001/vxml

               http://www.w3.org/TR/voicexml20/vxml.xsd">

        <form>

           <!-- script contains the function sayCard(type,position)

                which takes as input the type of card description (audio or text) and

                 its position in an array, and returns the selected card description in

                 the specified array position; if there is no description in the 

                 requested array position, then returns EMCAScript undefined -->

          <script src="cardgame.js"/>

          <field name="takecard">

             <grammar type="application/srgs+xml" src="/grammars/boolean.grxml"/>

             <prompt>

                <audio src="you_have.wav">You have the following cards: </audio>

                <!-- maximum of hand of 5 cards is described -->

                <audio expr="sayCard(audio,1)"><value expr="sayCard(text,1)"/></audio>

                <audio expr="sayCard(audio,2)"><value expr="sayCard(text,2)"/></audio>

                <audio expr="sayCard(audio,3)"><value expr="sayCard(text,3)"/></audio>

                <audio expr="sayCard(audio,4)"><value expr="sayCard(text,4)"/></audio>

                <audio expr="sayCard(audio,5)"><value expr="sayCard(text,5)"/></audio>

                <audio src="another.wav">Would you like another card?</audio>

             </prompt>

             <filled>

               <if cond="takecard">

                 <script>takeAnotherCard()</script>

                 <clear/>

               <else/>

                 <goto next="./make_bid.aspl"/>

               </if>

             </filled>

           </field>

        </form>

      </vxml>

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

      <vxml version="2.0" xmlns="http://www.w3.org/2001/vxml"

           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

             xsi:schemaLocation="http://www.w3.org/2001/vxml

               http://www.w3.org/TR/voicexml20/vxml.xsd">

        <form id="tapered">

          <block>

            <prompt bargein="false">

               Welcome to the ice cream survey.

            </prompt>

          </block>

          <field name="flavor">

             <grammar mode="voice" version="1.0" root="root">

               <rule id="root" scope="public">

                <one-of>

                  <item>vanilla </item>

                  <item>chocolate </item>

                  <item>strawberry </item>

                </one-of>

              </rule>

            </grammar>

            <prompt count="1">What is your favorite flavor?</prompt>

            <prompt count="3">Say chocolate, vanilla, or strawberry.</prompt>

            <help>Sorry, no help is available.</help>

          </field>

        </form>

      </vxml>

      C: Welcome to the ice cream survey.

      C: What is your favorite flavor? (the "flavor" field's prompt counter is 1) 

      H: Pecan praline.

      C: I do not understand.

      C: What is your favorite flavor? (the prompt counter is now 2) 

      H: Pecan praline.

      C: I do not understand.

      C: Say chocolate, vanilla, or strawberry. (prompt counter is 3)

      H: What if I hate those?

      C: I do not understand.

      C: Say chocolate, vanilla, or strawberry. (prompt counter is 4) 

      H: ...

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

      <vxml version="2.0" xmlns="http://www.w3.org/2001/vxml"

           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

             xsi:schemaLocation="http://www.w3.org/2001/vxml

               http://www.w3.org/TR/voicexml20/vxml.xsd">

        <form id="another_joke">

          <var name="r" expr="Math.random()"/>

            <field name="another">

             <grammar type="application/srgs+xml" src="/grammars/boolean.grxml"/>

            <prompt cond="r < .50">

               Would you like to hear another elephant joke?

             </prompt>

             <prompt cond="r >= .50">

                For another joke say yes.  To exit say no.

              </prompt>

              <filled>

                <if cond="another">

                  <goto next="#pick_joke"/>

               </if>

            </filled>

          </field>

        </form>

      </vxml>

      <prompt count="1">

          Pick a color for your new Model T.

      </prompt>

      <prompt count="2" timeout="120s">

          Please choose color of your new nineteen twenty four

          Ford Model T. Possible colors are black, black, or

          black.  Please take your time.

     </prompt>

      in document d0

      <field name="f0"/>

      <block>

          executable content e1

          queues prompts {p1}

      </block>

      <field name="f2">

        queues prompts {p2}

        enables grammars {g2}

     </field>

      in document d0

      <field name="f0"/>

      <block>

          executable content e1

          queues prompts {p1}

          ends with goto f2 in d1 with fetchaudio fa

      </block>

      in document d1

      <field name="f2">

        queues prompts {p2}

        enables grammars {g2}

     </field>

      in document d0

      <field name="f0"/>

      <block>

          executable content e1

          queues prompts {p1}

          ends with goto f2 in d1 (no fetchaudio specified)

      </block>

      in document d1

      <field name="f2">

        queues prompts {p2}

        enables grammars {g2}

     </field>