[blindlaw] blindlaw Digest, Vol 122, Issue 24

James Pepper b75205 at gmail.com
Mon Jul 28 17:57:03 UTC 2014


Long playing video with closed captioning has technical problems that have
to be overcome.  Sure you can close caption a small video on YouTube
something less than 5 minutes and it will match up to the words, but long
playing closed captioning doesn't sync with the video and so you have a
technical problem.

i worked on closed captioning several videos, film documentaries of more
than 30 minutes each and I found that the sync times depended on what type
of encoding was used for the films.  That even though it appeared that the
videos were exactly the same, they came from the same original file, they
were slightly off and the times for the compressed videos we posted on
YouTube, did not match the times for the videos we placed on Blue Ray.  And
as you progressed through the video, the time syncing went farther and
farther off.

This is not like subtitles, which are directly embedded in the film and
which I think is a better idea with movie theatre films, closed captioning
is a separate file and so syncing the video becomes very important.  You do
not want the punch line to be disclosed before it is said on the screen.

The movie industry is going to be able to say that for technical reasons
this is not going to be as easy as everyone thinks it will be and I would
suggest that if you push too hard you may end up with a situation we have
now with DAISY where it seemed like a great idea but nobody could implement
it consistently.

Google is doing the best work in closed captioning, they have a vested
interest in making this work.

James Pepper


On Sun, Jul 27, 2014 at 7:00 AM, <blindlaw-request at nfbnet.org> wrote:

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>    1. Feds Propose Rule for Captioning Services at the Movies   -
>       WRCBtv.com | Chattanooga News, Weather & Sports (Aimee Harwood)
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> Message: 1
> Date: Sat, 26 Jul 2014 09:05:20 -0400
> From: Aimee Harwood <awildheir at gmail.com>
> To: Blind Law Mailing List <blindlaw at nfbnet.org>
> Subject: [blindlaw] Feds Propose Rule for Captioning Services at the
>         Movies  - WRCBtv.com | Chattanooga News, Weather & Sports
> Message-ID: <04D429ED-077F-441E-9294-8537BFB23D8B at gmail.com>
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> If we aren't involved in this, let's find a way to help it become a
> reality.
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> http://www.wrcbtv.com/story/26114397/feds-propose-rule-for-captioning-services-at-the-movies
>
> Aimee
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> End of blindlaw Digest, Vol 122, Issue 24
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