voice
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><!-- Generated from data/head.php, ../../smarty/{head.tpl} --><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Voice Current Status - W3C</title><link rel="stylesheet" href="/2008/site/css/minimum" type="text/css" media="handheld, all" /><style type="text/css" media="print, screen and (min-width: 481px)" xml:space="preserve">
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<h1 class="title">Voice Current Status</h1>
<ul class="w3c_toc">
<li>
<a href="#completed">completed work</a>
— including <a href="#stds">standards</a>
<span class="bullet">• </span>
</li>
<li>
<a href="#drafts">drafts</a>
<span class="bullet">• </span>
</li>
<li>
<a href="#obsolete">obsolete specifications</a>
</li>
</ul>
<div id="w3c_content_body">
<div id="w3c_generated_status">
<p id="w3c_toggle_include" class="default_open intro tPadding">This page summarizes the relationships among specifications, whether they are finished standards or drafts. Below, each title
links to the most recent version of a document.
For related introductory information, see: <a href="http://www.w3.org/standards/webofdevices/voice">Voice Browsing</a>.</p>
<h2 id="completed">Completed Work</h2>
<p>
<a href="/TR/tr-technology-stds">W3C Recommendations</a> have
been reviewed by W3C Members, by software developers, and by other
W3C groups and interested parties, and are endorsed by the
Director as Web Standards. Learn more about the <a href="/Consortium/Process/tr#rec-advance">W3C Recommendation
Track</a>.</p>
<p>
<a href="/2005/10/Process-20051014/tr.html#q75">Group Notes</a> are <em>not</em> standards and do not
have the same level of W3C endorsement.</p>
<h3 id="stds">Standards</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/ccxml" title="Voice Browser Call Control: CCXML Version 1.0 publication history">2011-07-05</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2011/REC-ccxml-20110705/">Voice Browser Call Control: CCXML Version 1.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=ccxml">translations</a>
·
<a href="http://www.w3.org/2011/07/ccxml-errata">errata</a>
</p>
<div class="expand_description">
<p>
The Call Control Extensible Markup Language (CCXML) provides declarative markup to describe telephony call control. CCXML can be used in conjunction with a dialog system such as VoiceXML.
</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/speech-synthesis11" title="Speech Synthesis Markup Language (SSML) Version 1.1 publication history">2010-09-07</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2010/REC-speech-synthesis11-20100907/">Speech Synthesis Markup Language (SSML) Version 1.1</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=speech-synthesis11">translations</a>
·
<a href="http://www.w3.org/2010/04/speech-synthesis11-errata.html">errata</a>
</p>
<div class="expand_description">
<p>Provides a rich, XML-based markup language for assisting the generation of synthetic speech in Web and other applications. The essential role of the markup language is to provide authors of synthesizable content a standard way to control aspects of speech such as pronunciation, volume, pitch, rate, etc. across different synthesis-capable platforms.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/pronunciation-lexicon" title="Pronunciation Lexicon Specification (PLS) Version 1.0 publication history">2008-10-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2008/REC-pronunciation-lexicon-20081014/">Pronunciation Lexicon Specification (PLS) Version 1.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=pronunciation-lexicon">translations</a>
·
<a href="http://www.w3.org/2008/10/pronunciation-lexicon-errata.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines the syntax for specifying pronunciation lexicons to be used by Automatic Speech Recognition and Speech Synthesis engines in voice browser applications.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voicexml21" title="Voice Extensible Markup Language (VoiceXML) 2.1 publication history">2007-06-19</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2007/REC-voicexml21-20070619/">Voice Extensible Markup Language (VoiceXML) 2.1</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=voicexml21">translations</a>
·
<a href="http://www.w3.org/2007/06/voicexml21-errata.html">errata</a>
</p>
<div class="expand_description">
<p>
<em>VoiceXML 2.1</em> specifies a set of features commonly
implemented by Voice Extensible Markup Language platforms. This
specification is designed to be fully backwards-compatible with
VoiceXML 2.0 [VXML2]. <span>This
specification describes only the set of additional
features.</span>
</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/semantic-interpretation" title="Semantic Interpretation for Speech Recognition (SISR) Version 1.0 publication history">2007-04-05</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2007/REC-semantic-interpretation-20070405/">Semantic Interpretation for Speech Recognition (SISR) Version 1.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=semantic-interpretation">translations</a>
·
<a href="http://www.w3.org/2007/03/sisr-errata.html">errata</a>
</p>
<div class="expand_description">
<p>Grammar Processors, and in particular speech recognizers, use a grammar that defines the words and sequences of words to define the input language that they can accept. The major task of a grammar processor consists of finding the sequence of words described by the grammar that (best) matches a given utterance, or to report that no such sequence exists. This document defines the syntax and the semantics of Semantic Interpretation Tags for use with the Speech Recognition Grammar Specification.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/speech-synthesis" title="Speech Synthesis Markup Language (SSML) Version 1.0 publication history">2004-09-07</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2004/REC-speech-synthesis-20040907/">Speech Synthesis Markup Language (SSML) Version 1.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=ssml">translations</a>
·
<a href="http://www.w3.org/2004/09/ssml-errata.html">errata</a>
</p>
<div class="expand_description">
<p>Provides a rich, XML-based markup language for assisting the generation of synthetic speech in Web and other applications. The essential role of the markup language is to provide authors of synthesizable content a standard way to control aspects of speech such as pronunciation, volume, pitch, rate, etc. across different synthesis-capable platforms.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voicexml20" title="Voice Extensible Markup Language (VoiceXML) Version 2.0 publication history">2004-03-16</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2004/REC-voicexml20-20040316/">Voice Extensible Markup Language (VoiceXML) Version 2.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=voicexml20">translations</a>
·
<a href="http://www.w3.org/2004/03/voicexml20-errata.html">errata</a>
</p>
<div class="expand_description">
<p>This document specifies VoiceXML, the Voice Extensible Markup
Language. VoiceXML is designed for creating audio dialogs that
feature synthesized speech, digitized audio, recognition of
spoken and DTMF key input, recording of spoken input, telephony,
and mixed initiative conversations. Its major goal is to bring
the advantages of Web-based development and content delivery to
interactive voice response applications.</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/speech-grammar" title="Speech Recognition Grammar Specification Version 1.0 publication history">2004-03-16</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2004/REC-speech-grammar-20040316/">Speech Recognition Grammar Specification Version 1.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=speech-grammar">translations</a>
·
<a href="http://www.w3.org/2004/03/speech-grammar-errata.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines syntax for representing grammars for use in speech recognition so that developers can specify the words and patterns of words to be listened for by a speech recognizer. </p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h3 id="notes">Group Notes</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/mw4d-roadmap" title="Mobile Web for Social Development Roadmap publication history">2009-12-08</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2009/NOTE-mw4d-roadmap-20091208/">Mobile Web for Social Development Roadmap</a>
</h4>
<div class="expand_description">
<p>The purpose of this document is to help people understand the current challenges of deploying development-oriented services on mobile phones, evaluate existing technologies, and identify the most promising directions to lower the barriers of developing, deploying and accessing services on mobile phones and thereby creating an enabling environment for more social-oriented services to appear. </p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/ssml-sayas" title="SSML 1.0 say-as attribute values publication history">2005-05-26</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2005/NOTE-ssml-sayas-20050526">SSML 1.0 say-as attribute values</a>
</h4>
<div class="expand_description">
<p>This is a sample short description for this specification;
over time we will replace this description with a real one.</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/NOTE-voice" title="Voice Browsers publication history">1998-01-28</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/1998/NOTE-voice-0128">Voice Browsers</a>
</h4>
<div class="expand_description">
<p>This is a sample short description for this specification;
over time we will replace this description with a real one.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h2 id="drafts">Drafts</h2>
<p>Below are draft documents:
<a href="/2005/10/Process-20051014/tr.html#last-call">Last Call Drafts</a>, <a href="/2005/10/Process-20051014/tr.html#RecsWD">other Working Drafts</a>.
Some of these may become Web Standards through the <a href="/Consortium/Process/tr#rec-advance">W3C Recommendation Track
process</a>. Others may be published as Group Notes or
become obsolete specifications.</p>
<h3 id="lcwd">Last Call Drafts</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr class="lastRow">
<td class="table_datecol">
<a href="../history/css3-speech" title="CSS Speech Module publication history">2011-08-18</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is LCWD" href="http://www.w3.org/TR/2011/WD-css3-speech-20110818">CSS Speech Module</a>
</h4>
<div class="expand_description">
<p>CSS (Cascading Style Sheets) is a language for describing the
rendering of HTML and XML documents on screen, on paper, in speech,
etc. CSS defines aural properties that give control over rendering
XML to speech. This draft describes the text to speech properties
proposed for CSS level 3. These are designed for match the model
described in the Speech Synthesis Markup Language (SSML) Version 1.0
[SSML10]</p>
<p>The CSS3 Speech Module is a community effort and if you would
like to help with implementation and driving the specification
forward along the W3C Recommendation track, please contact the
editors.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h3 id="wd">Other Working Drafts</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/scxml" title="State Chart XML (SCXML): State Machine Notation for Control Abstraction publication history">2011-04-26</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2011/WD-scxml-20110426/">State Chart XML (SCXML): State Machine Notation for Control Abstraction</a>
</h4>
<div class="expand_description">
<p>This document describes SCXML, or the "State Chart extensible
Markup Language". SCXML provides a generic state-machine based
execution environment based on CCXML and Harel State Tables.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voicexml30" title="Voice Extensible Markup Language (VoiceXML) 3.0 publication history">2010-12-16</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2010/WD-voicexml30-20101216/">Voice Extensible Markup Language (VoiceXML) 3.0</a>
</h4>
<div class="expand_description">
<p>VoiceXML 3.0 is a modular XML language for creating interactive media
dialogs that feature synthesized speech, recognition of spoken and
DTMF key input, telephony, mixed initiative conversations, and
recording and presentation of a variety of media formats including
digitized audio, and digitized video. The primary goal of the spec is
to bring the advantages of Web-based development and content delivery
to interactive voice response applications.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/vxml30reqs" title="Voice Extensible Markup Language (VoiceXML) 3.0 Requirements publication history">2008-08-08</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2008/WD-vxml30reqs-20080808/">Voice Extensible Markup Language (VoiceXML) 3.0 Requirements</a>
</h4>
<div class="expand_description">
<p>The W3C Voice Browser working group aims to develop specifications to
enable access to the Web using spoken interaction. This document is part of a
set of requirement studies for voice browsers, and provides details of the
requirements for marking up spoken dialogs.</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/ssml11reqs" title="Speech Synthesis Markup Language Version 1.1 Requirements publication history">2007-06-11</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2007/WD-ssml11reqs-20070611/">Speech Synthesis Markup Language Version 1.1 Requirements</a>
</h4>
<div class="expand_description">
<p>This is a sample short description for this specification;
over time we will replace this description with a real one.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h2 id="obsolete">Obsolete Specifications</h2>
<p>These specifications have either been superseded by others,
or have been abandoned. They remain available for archival
purposes, but are not intended to be used.</p>
<h3 id="retired">
Retired
</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/lexicon-reqs" title="Pronunciation Lexicon Specification (PLS) Version 1.0 Requirements publication history">2004-10-29</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2004/WD-lexicon-reqs-20041029/">Pronunciation Lexicon Specification (PLS) Version 1.0 Requirements</a>
</h4>
<div class="expand_description">
<p>The W3C Voice
Browser Working
Group aims to develop
specifications to enable access to the Web using spoken
interaction. This document is part of a set of requirements studies
for voice browsers, and provides details of the requirements for
markup used for specifying application specific pronunciation
lexicons.</p>
<p>Application specific pronunciation
lexicons are required in many
situations where the default lexicon supplied with a speech
recognition or speech synthesis processor does not cover the
vocabulary of the application. A pronunciation lexicon is a
collection of words or phrases together with their pronunciations
specified using an appropriate pronunciation alphabet.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/vbi-reqs" title="Voice Browser Interoperation: Requirements publication history">2002-08-08</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2002/WD-vbi-reqs-20020808/">Voice Browser Interoperation: Requirements</a>
</h4>
<div class="expand_description">
<p>A voice browser provides the means for people to use their voice
to interact with appropriately designed applications. Users
generally connect to voice browsers by dialling an access number.
The voice browser in turn retrieves markup (e.g. VoiceXML) and other
resources from an application server. In some situations it is
appropriate to transfer the user from one voice browser to another.
In other situations, the user may start from a visual web page and
then transfer to a voice browser, yet another possibility is
transfer from a voice browser to a human operator.</p>
<p>This document describes the requirements for how voice browsers
and other call sites can cooperate by sharing data to create a
seamless caller experience. An example of a potential resulting
benefit to a caller is not having to re-enter the same information
repeatedly at different call sites. A potential benefit for service
providers is a flexible architecture for deploying and
interconnecting disparate call sites.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/call-control-reqs" title="Call Control Requirements in a Voice Browser Framework publication history">2001-04-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2001/WD-call-control-reqs-20010413/">Call Control Requirements in a Voice Browser Framework</a>
</h4>
<div class="expand_description">
<p>This is a sample short description for this specification;
over time we will replace this description with a real one.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/ngram-spec" title="Stochastic Language Models (N-Gram) Specification publication history">2001-01-03</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2001/WD-ngram-spec-20010103/">Stochastic Language Models (N-Gram) Specification</a>
</h4>
<div class="expand_description">
<p>This is a sample short description for this specification;
over time we will replace this description with a real one.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voice-intro" title="Voice Browsers, Introduction publication history">2000-12-04</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2000/WD-voice-intro-20001204/">Voice Browsers, Introduction</a>
</h4>
<div class="expand_description">
<p>The World Wide Web Consortium's Voice Browser Working Group is
defining several markup languages for applications supporting
speech input and output. These markup languages will enable
speech applications across a range of hardware and software
platforms. Specifically, the Working Group is designing markup
languages for dialog, speech recognition grammar, speech
synthesis, natural language semantics, and a collection of
reusable dialog components. These markup languages make up the
W3C Speech Interface Framework. The speech community is invited
to review and comment on the working draft requirement and
specification documents.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/nl-spec" title="Natural Language Semantics Markup Language for the Speech Interface Framework publication history">2000-11-20</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2000/WD-nl-spec-20001120/">Natural Language Semantics Markup Language for the Speech Interface Framework</a>
</h4>
<div class="expand_description">
<p>The W3C Voice Browser working group aims to develop
specifications to enable access to the Web using spoken
interaction. This document is part of a set of specifications for
voice browsers, and provides details of an XML markup language
for describing the meanings of individual natural language
utterances. It is expected to be automatically generated by
semantic interpreters for use by components that act on the
user's utterances, such as dialog managers.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/multimodal-reqs" title="Multimodal Requirements for Voice Markup Languages publication history">2000-07-10</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2000/WD-multimodal-reqs-20000710">Multimodal Requirements for Voice Markup Languages</a>
</h4>
<div class="expand_description">
<p>Multimodal browsers allow users to interact via a combination
of modalities, for instance, speech recognition and synthesis,
displays, keypads and pointing devices. The Voice Browser working
group is interested in adding multimodal capabilities to voice
browsers. This document sets out a prioritized list of
requirements for multimodal dialog interaction, which any
proposed markup language (or extension thereof) should
address.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/reusable-dialog-reqs" title="Reusable Dialog Requirements for Voice Markup Language publication history">2000-04-26</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2000/WD-reusable-dialog-reqs-20000426">Reusable Dialog Requirements for Voice Markup Language</a>
</h4>
<div class="expand_description">
<p>The W3C Voice Browser working group aims to develop
specifications to enable access to the Web using spoken
interaction. This document is part of a set of requirements
studies for voice browsers, and provides details of the
requirements for reusable components for spoken dialogs.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voice-grammar-reqs" title="Grammar Representation Requirements for Voice Markup Languages publication history">1999-12-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/1999/WD-voice-grammar-reqs-19991223">Grammar Representation Requirements for Voice Markup Languages</a>
</h4>
<div class="expand_description">
<p>The W3C Voice Browser working group aims to develop
specifications to enable access to the Web using spoken
interaction. This document is part of a set of requirements studies
for voice browsers, and provides details of the requirements for
grammars for speech recognition.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voice-dialog-reqs" title="Dialog Requirements for Voice Markup Languages publication history">1999-12-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/1999/WD-voice-dialog-reqs-19991223">Dialog Requirements for Voice Markup Languages</a>
</h4>
<div class="expand_description">
<p>The W3C Voice Browser working group aims to develop
specifications to enable access to the Web using spoken
interaction. This document is part of a set of requirements studies
for voice browsers, and provides details of the requirements for
marking up spoken dialogs.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voice-architecture" title="Model Architecture for Voice Browser Systems publication history">1999-12-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/1999/WD-voice-architecture-19991223">Model Architecture for Voice Browser Systems</a>
</h4>
<div class="expand_description">
<p>The W3C Voice Browser working group aims to develop
specifications to enable access to the Web using spoken
interaction. This document is part of a set of requirements studies
for voice browsers, and provides a model architecture for
processing speech within voice browsers.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/voice-nlu-reqs" title="Natural Language Processing Requirements for Voice Markup Languages publication history">1999-12-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/1999/WD-voice-nlu-reqs-19991223">Natural Language Processing Requirements for Voice Markup Languages</a>
</h4>
<div class="expand_description">
<p>This is a sample short description for this specification;
over time we will replace this description with a real one.</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/voice-tts-reqs" title="Speech Synthesis Markup Requirements for Voice Markup Languages publication history">1999-12-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/1999/WD-voice-tts-reqs-19991223">Speech Synthesis Markup Requirements for Voice Markup Languages</a>
</h4>
<div class="expand_description">
<p>This is a sample short description for this specification;
over time we will replace this description with a real one.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
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