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SM6.html
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<!DOCTYPE html><html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><title>Providing audio description in SMIL 1.0</title><link rel="stylesheet" type="text/css" href="../../css/sources.css" class="remove"></link></head><body><h1>Providing audio description in SMIL 1.0</h1><section class="meta"><p class="id">ID: SM6</p><p class="technology">Technology: smil</p><p class="type">Type: Technique</p></section><section id="applicability"><h2>When to Use</h2>
<p> Applies whenever SMIL 1.0 player is available </p>
</section><section id="description"><h2>Description</h2>
<p> The objective of this technique is to provide a way for people who are blind
or otherwise have trouble seeing the video in audio-visual material to be
able to access the material. With this technique a description of the video
is provided via audio description that will fit into the gaps in the dialogue
in the audio-visual material. </p>
</section><section id="examples"><h2>Examples</h2>
<section class="example">
<h3> SMIL 1.0 audio description sample for QuickTime player</h3>
<pre xml:space="preserve">
<?xml version="1.0" encoding="UTF-8"?>
<smil xmlns:qt="http://www.apple.com/quicktime/resources/smilextensions"
xmlns="https://www.w3.org/TR/REC-smil" qt:time-slider="true">
<head>
<layout>
<root-layout background-color="black" height="266" width="320"/>
<region id="videoregion" background-color="black" top="26" left="0"
height="144" width="320"/>
</layout>
</head>
<body>
<par>
<video dur="0:01:20.00" region="videoregion" src="salesdemo.mov"
alt="Sales Demo"/>
<audio dur="0:01:20.00" src="salesdemo_ad.mp3"
alt="Sales Demo Audio Description"/>
</par>
</body>
</smil> </pre>
</section>
<section class="example">
<h3> SMIL 1.0 audio description sample for RealTime player</h3>
<pre xml:space="preserve">
<?xml version="1.0" encoding="UTF-8"?>
<smil xmlns="https://www.w3.org/TR/REC-smil">
<head>
<layout>
<root-layout background-color="black" height="266" width="320"/>
<region id="videoregion" background-color="black" top="26" left="0"
height="144" width="320"/>
</layout>
</head>
<body>
<par>
<video src="salesdemo.mov" region="videoregion" title="Sales Demo"
alt="Sales Demo"/>
<audio src="salesdemo_ad.mp3" title="audio description"
alt="Sales Demo Audio Description"/>
</par>
</body>
</smil></pre>
</section>
</section><section id="tests"><h2>Tests</h2>
<section class="procedure"><h3>Procedure</h3>
<ol>
<li> Find method for turning on audio description from
content/player (unless it is always played by default) </li>
<li> Play file with audio description </li>
<li> Check whether audio description is played </li>
</ol>
</section>
<section class="results"><h3>Expected Results</h3>
<ul>
<li> #3 is true </li>
</ul>
</section>
</section><section id="related"><h2>Related Techniques</h2><ul>
<li><a href="../smil/SM2">SM2</a></li>
<li><a href="../smil/SM7">SM7</a></li>
</ul></section><section id="resources"><h2>Resources</h2>
<ul>
<li>
<a href="https://www.w3.org/TR/REC-smil/">Synchronized
Multimedia Integration Language (SMIL) 1.0</a>
</li>
<li>
<a href="https://www.w3.org/TR/SMIL/">Synchronized Multimedia
Integration Language (SMIL 2.0)</a>
</li>
<li>
<a href="https://www.w3.org/TR/SMIL-access/">Accessibility
Features of SMIL</a>
</li>
<li>
<a href="http://ncam.wgbh.org/invent_build/web_multimedia/accessible-digital-media-guide/guideline-h-multimedia#techH12">NCAM Rich Media Accessibility, Accessible SMIL
Templates</a>
</li>
<li>
<a href="https://msdn.microsoft.com/en-us/library/ms971327.aspx">SAMI 1.0</a>
</li>
<li>
<a href="https://www.w3.org/TR/SMIL-access/">Accessibility
Features of SMIL</a>
</li>
</ul>
</section></body></html>