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Re: sect 5.2 review

From: Harvey Bingham <hbingham@acm.org>
Date: Wed, 14 Apr 1999 13:36:23 -0400
Message-Id: <4.1.19990414123400.00b141f0@pop.tiac.net>
To: WAI UA group <w3c-wai-ua@w3.org>
At 1999-04-13 04:51 PM, Jim Allan wrote:
>Geoff Freed (WGBH) and I review the section dealing with multimedia as part
>of a different task.
>...
><note>Moved from checkpoints for video</note>
>5.2.6 [Priority 1]
>If a technology allows for more than one caption track (e.g., text,
>alternative language (subtitle), etc.), allow the user to choose from among

HB: Choose one among, or mix from more than one? In that mixing case, 
hard to avoid sound classes.

>tracks.
><note>  separated captions from audio description and made 2 separate
>checkpoints. Audio description is alternative content for video and should
>be included in that section (see 5.2.9a).</note>
>
>Checkpoints for audio:
>
><note>Moved from checkpoints for video</note>
>5.2.7 [Priority 1]
>If a technology allows for more than one audio track (alternative language
>or overdub) for video, allow the user to choose from among tracks.
>
HB: ... choose one among tracks.
>Checkpoints for video:
>
>5.2.9 [Priority 1]
>Allow the user to specify that audio descriptions for video be rendered at
>the same time as the video.
><note>separated the captions, see 5.2.5</note>

HB: does the audio description get synchronized frame-by-frame?
>
><new>
>5.2.9a [Priority 1]
>If a technology allows for more than one audio description track for video,
>allow the user to choose from among tracks.</new>
><note>mirroring caption checkpoints</note>

HB: Choose [one or more] among ...
>
><new>5.2.x [Priority 2]
>Allow the user to specify that sign language video track (if available) be
>rendered at the same time as the video. </new>
><note>this was not specified before. it is possible with in the SMIL spec to
>provide this capability</note>
>
HB: Would a user ever want both the sign-language and another track?
>
>Jim Allan, Statewide Technical Support Specialist
>Texas School for the Blind and Visually Impaired
>1100 W. 45th St., Austin, Texas 78756
>voice 512.206.9315    fax: 512.206.9453  http://www.tsbvi.edu/
>"We shape our tools and thereafter our tools shape us." McLuhan, 1964
>
Received on Wednesday, 14 April 1999 13:45:50 GMT

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