open-standards/wai/live-conformance/access/lesson.dapt.ttml
Transaction Science 00bbc69536 wai.access.services: caption quality from the signed revisions, audio description, sign language and a completeness claim
The extension (extensions/access-services.md), the access_services module of wai-rs
behind its own feature, and the corpus live-conformance/access/ written from fixed seeds
by wai_access_services_vectors: three accepted sessions and a negative control for every
reason of §10, and the DAPT document of each description.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-21 12:13:31 -04:00

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XML

<?xml version="1.0" encoding="UTF-8"?>
<tt xmlns="http://www.w3.org/ns/ttml" xmlns:ttp="http://www.w3.org/ns/ttml#parameter" xmlns:tta="http://www.w3.org/ns/ttml#audio" xmlns:daptm="http://www.w3.org/ns/ttml/profile/dapt#metadata" xmlns:wai="tag:transaction.science,2026:wai/access" xml:lang="en" ttp:contentProfiles="http://www.w3.org/ns/ttml/profile/dapt1.0/content" daptm:langSrc="zxx" daptm:scriptRepresents="visual.nonText visual.text" daptm:scriptType="asRecorded" wai:script="human" wai:voice="machine" wai:voice-model="1c1172ff98d71af4286f2a67fa50ccf58dedcfd642a1974ebbcc1cbaff53848f">
<body>
<div xml:id="d1" begin="00:00:10.500" end="00:00:11.900" daptm:represents="visual.nonText">
<animate begin="00:00:00.000" end="00:00:00.200" tta:gain="1;0.4" fill="freeze"/>
<animate begin="00:00:01.200" end="00:00:01.400" tta:gain="0.4;1"/>
<p><span begin="00:00:00.220" end="00:00:01.190"><audio src="https://media.example/lesson/description.mp4" type="audio/mp4" clipBegin="00:00:10.720" clipEnd="00:00:11.690"/>A teacher stands beside a tide chart.</span></p>
</div>
<div xml:id="d2" begin="00:00:15.200" end="00:00:16.000" daptm:represents="visual.text">
<p><span begin="00:00:00.010" end="00:00:00.790"><audio src="https://media.example/lesson/description.mp4" type="audio/mp4" clipBegin="00:00:15.210" clipEnd="00:00:15.990"/>On the board: HIGH TIDE 06:10.</span></p>
</div>
</body>
</tt>