[Ogg a11y] Fwd: [whatwg] Captions, Subtitles and the Video Element

[Danielle Clarneaux]

Re: [Ogg a11y] Fwd: [whatwg] Captions, Subtitles and the Video  ElementI was told that currently a lot of captioning is not done stenographically but by the captioner using word recognition software and repeating dialogue. I have a captioned telephone where this is happening and it's very similar to the delay I'm seeing more on television.

Sorry, don't mean to get off the topic of web captioning!

danielle
  ----- Original Message ----- 
  From: Larry Goldberg 
  To: Silvia Pfeiffer ; danclar at comcast.net 
  Cc: accessibility at xiph.org 
  Sent: Thursday, February 26, 2009 4:31 PM
  Subject: Re: [Ogg a11y] Fwd: [whatwg] Captions, Subtitles and the Video Element


  The standard delay for real-time captions is no more than 1-2 seconds (due to the nature of the live stenographic software and its translation process and the manual keying by the stenocaptioner). 

  If the perceived delay of captions on the Discovery Chanel was more than this, it could have been due to processing problems, especially if it was the HD channel. Such problems have been reported on various broadcasts and cable feeds.

  And yes, due to the nature of web-based delivery it theoretically is possible to re-sync captions or eliminate delay in real-time caption production by delaying video+audio.

  ... Larry ...





------------------------------------------------------------------------------
  From: Silvia Pfeiffer <silviapfeiffer1 at gmail.com>
  Date: Thu, 26 Feb 2009 18:25:34 -0500
  To: <danclar at comcast.net>
  Cc: <accessibility at xiph.org>
  Subject: Re: [Ogg a11y] Fwd: [whatwg] Captions, Subtitles and the Video  Element

  Ah, in this case you have to delay the video viewing really. This
  should be possible on the Web, because it's all up to the buffering
  mechanism in your Web browser. So, the re-synching of the captions
  should be possible in this case.

  Cheers,
  Silvia.

  On Fri, Feb 27, 2009 at 9:56 AM, Danielle Clarneaux <danclar1 at msn.com> wrote:
  > This may not be revelant to your discussion, but this is the explanation I
  > received from Discovery Channel when I questioned their delayed captioning.
  > I'm not sure how Internet video captions will be processed, but thought I'd
  > send this along.
  >
  > The program  is being viewed  in real-time (live) captioned.  Live
  > captioning is being created as the show airs.  Oftentimes there is no
  > advanced warning as to the specific content of the show, and the captioner
  > can make mistakes while transcribing the program as it progresses.   Because
  > this type of captioning is created after the dialogue has been heard by the
  > real-time captioner, there is an inherent delay associated with live
  > captioning.  Live captioning is necessary when the program delivers too
  > close to air to be able to caption the program offline - a process which
  > takes, on average, 8 hours for every 1 hour of programming.
  >
  >
  > Danielle Clarneaux
  >
  >
  >
  >
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