[Athen] captions for ios devices

Ken Petri petri.1 at osu.edu
Thu Dec 20 14:39:23 PST 2012

Hi Dean,

The Handbrake method works just fine. But if you have a Mac iSubtitle gives
you more options.

Here's the too-long URL on how to do this with Handbrake:

A short URL to the entire DIY Captioning Techniques page is:

Other good info in this page as well. The info about how to add an audio
description track is forth-coming. That technique does, however, require
QuickTime Pro....

Ken Petri
Program Director, OSU Web Accessibility Center
102D Pomerene Hall, 1760 Neil Avenue, Columbus, Ohio 43210
Office: 614.292.1760 | Mobile: 614.218.1499 | Fax: 614.292.4190
http://wac.osu.edu | petri.1 at osu.edu

On Thu, Dec 20, 2012 at 5:10 PM, Sean J Keegan <skeegan at stanford.edu> wrote:

> > I want to learn how to add captions for iOS devices. I found a

> > vendor site that gives instructions, but it says it only works using

> > QuickTime Pro on a Mac. I have been unsuccessful in searches to

> > confirm this. Can someone please tell me whether this is accurate?


> Hi Dean,


> Generally speaking, there are two ways to add captions to iOS media:

> embedding a caption file so that it requires the closed caption decoder;

> or, embedding a caption file as a subtitle track.


> The first method is what I call the "closed caption decoder" solution.

> This requires that you create an SCC file and embed this file into the

> original media file. In order to view these captions on an iOS device you

> have to enable the closed caption decoder feature in the Videos menu

> (Settings > Videos > Closed Captioning). The SCC file is the same file

> type as is used for captioning VHS media content and is a bit of a pain.

> From what I have found, you need to have Compressor (Mac only) in order to

> integrate the SCC caption into the original media file.


> The second method is what I call the "subtitle track" solution. This

> involves using the subtitle track to embed caption information into the

> media file. I have had much greater success using this solution as it is

> far easier to deal with the SRT caption file and the application used to

> embed the captions (as subtitles) into the original media. I have used the

> application iSubtitle (Mac only) to perform this process. Subler, also Mac

> only, also works.


> For Windows, the options are varied. Wondershare Video Converter Ultimate

> (http://www.wondershare.com/**video-editing-tips/how-to-add-**

> subtitles-to-mp4.html<http://www.wondershare.com/video-editing-tips/how-to-add-subtitles-to-mp4.html>)

> is one tool that you could try. Previous versions seemed to work with

> getting a subtitle track into an MP4 media file, so that may be one option

> (I only tried this tool years ago, so your mileage may vary).


> Handbrake may be an option now that there is improved subtitle support for

> MP4 media files. With a user created SRT caption file, you can run the

> media file and caption file together through Handbrake to get soft or hard

> subtitles (soft-subtitles can be enabled/disabled whereas hard-subtitles

> are burned into the video itself). See https://trac.handbrake.fr/**

> wiki/Subtitles <https://trac.handbrake.fr/wiki/Subtitles> for more

> information. I have not tried this method myself (yet!).


> Take care,

> Sean


> --

> Sean Keegan

> Associate Director, Assistive Technology

> Office of Accessible Education - Stanford University

> http://studentaffairs.**stanford.edu/oae<http://studentaffairs.stanford.edu/oae>

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