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Improve Script Represents in AD examples #277

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Dec 10, 2024
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Improve Script Represents in AD examples #277

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2 changes: 1 addition & 1 deletion examples/intro-script-with-gain.xml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
<tt ...
daptm:scriptRepresents="visual.nonText visual.text"
daptm:scriptRepresents="visual.nonText"
daptm:scriptType="asRecorded"
xml:lang="en"
daptm:langSrc="">
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30 changes: 30 additions & 0 deletions examples/intro-times-and-text-with-visual-text.xml
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@@ -0,0 +1,30 @@
<tt xmlns="http://www.w3.org/ns/ttml"
xmlns:ttp="http://www.w3.org/ns/ttml#parameter"
xmlns:daptm="http://www.w3.org/ns/ttml/profile/dapt#metadata"
xmlns:xml="http://www.w3.org/XML/1998/namespace"
ttp:contentProfiles="http://www.w3.org/ns/ttml/profile/dapt1.0/content"
xml:lang="en"
daptm:langSrc=""
daptm:scriptRepresents="visual.nonText visual.text"
daptm:scriptType="preRecording">
<body>
<div begin="7s" end="8.5s" xml:id="at1"
daptm:represents="visual.text.location" daptm:langSrc="en">
<p>
The Lake District, England
</p>
</div>
<div begin="10s" end="13s" xml:id="a1"
daptm:represents="visual.nonText">
<p>
A woman climbs into a small sailing boat.
</p>
</div>
<div begin="18s" end="20s" xml:id="a2"
daptm:represents="visual.nonText">
<p>
The woman pulls the tiller and the boat turns.
</p>
</div>
</body>
</tt>
2 changes: 1 addition & 1 deletion examples/intro-times-and-text.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
ttp:contentProfiles="http://www.w3.org/ns/ttml/profile/dapt1.0/content"
xml:lang="en"
daptm:langSrc=""
daptm:scriptRepresents="visual.nonText visual.text"
daptm:scriptRepresents="visual.nonText"
daptm:scriptType="preRecording">
<body>
<div begin="10s" end="13s" xml:id="a1" daptm:represents="visual.nonText">
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18 changes: 18 additions & 0 deletions index.html
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Expand Up @@ -470,6 +470,24 @@ <h4>Audio Description Examples</h4>
data-include="examples/intro-times-and-text.xml"
data-include-format="text">
</pre>
<p>Audio description content often includes text present in the visual image,
for example if the image contains a written sign, a location, etc.
The following example demonstrates such a case:
<a>Script Represents</a> is extended
to show that the <a>script</a>'s contents represent textual visual information
in addition to non-textual visual information.
Here a more precise value of <a>Represents</a>
is specified on the <a>Script Event</a>
to reflect that the text is in fact a location,
which is allowed because the more precise value is a <a>sub-type</a>
of the new value in <a>Script Represents</a>.
Finally, since the text has an inherent language, the <a>Text Language Source</a>
is set to reflect that language.
</p>
<pre class="example"
data-include="examples/intro-times-and-text-with-visual-text.xml"
data-include-format="text">
</pre>
<p>After creating audio recordings, if not using text to speech, instructions for playback
mixing can be inserted. For example, The gain of "received" audio can be changed before mixing in
the audio played from inside the <code>&lt;span&gt;</code> element, smoothly
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