Making Podcasts Accessible

Plan on transcribing all audio podcasts and providing a link to the text transcript.

What is a podcast?

step-by-step how-to create an accessible audio podcast

step-by-step how-to create an accessible video vodcast

informational links


If the podcasts are going to be posted on a District server, then an accessible transcript must be provided. 

Podcast about podcasting: Podcasting MP3 Podcasting XML paste URL into Podcatching software Transcript

You can copy and paste this URL into your podcatcher/Aggregator software to subscribe to get the audio version About Podcasting: /hightech/classes/accessibility/podcasting/podcasting.xml

Need free accessible podcatching/aggregator software? Try Juice.

1) If the podcast is audio only, I recommend typing the transcript out and posting it in accessible HTML format and providing a link.  This process could be assisted by Dragon NaturallySpeaking speech-recognition software if only one person is speaking, You must first have trained Dragon NaturallySpeaking, and then correct the mistakes. Hint: If you are using the older Dragon NaturallySpeaking version 7, record your audio file in MP3 and in 16-bit mono 11025 Hz WAVE format so Dragon can transcribe it. step-by-step how-to create an accessible audio podcast

2) If the podcasts also contain video (i.e. they are "vodcasts"), then they will need to be captioned just like any other educational video and an accessible transcript should be provided. To caption the vodcast, you will need both the free MAGpie software and a purchased license of Apple QuickTime Pro (Price: $29.99).

step-by-step how-to create an accessible video vodcast/podcast

For an example of captioned vodcasts (video podcasts), see NASA's site.

Plan on transcribing all podcasts and providing a link to the text transcript.

 

For example of a place providing podcasts with accessible HTML transcripts, please visit Security Now.


What is a Podcast?

More or less a podcast is a downloadable audio (and less frequently video "vidcasts"or "vodcato tosts") file that people could access from a computer and/or portable media player (MP3 player, Apple iPod, etc.). For more information please see Wikipedia Podcasts.

If you want to download some podcasts from RSS feeds, you will need aggregator software like the free and easy to use Juice.

Free podcasting publishing software: ListGarden RSS Feed Generator Program


How-to for audio Podcasting

1. Record your message in MP3, 64 KBps mono (and 16-bit mono 11025 Hz Wave format if you will using Dragon Naturally Speaking for transcript).

2. Use the free ListGarden RSS Feed Generator Program to create the XML file for a podcast.

3. Create a transcript of your audio file.
You could use a voice program like Dragon Naturally Speaking to create a transcript using the WAV version of your audio. Or you could pay 75-cents per minute (not an unreasonable price at all) to have castingWords.com transcribe it for you (I haven't tried this service yet myself).

4. Upload your MP3 audio file, XML file, and the transcript to a web server (Blackboard)

5. Post and create links for the MP3 audio file, XML file, and transcript on your web/Blackboard page

 


How-to for video Vodcasting

1. Create a transcript of your audio file.
You could use a voice program like Dragon Naturally Speaking to create a transcript using the 16-bit mono 11025 Hz WAV version of your audio.

2. Chop up the transcript to create a caption file using MAGpie and Apple QuickTime Pro -- the free Quicktime won't work. See "Creating the Quicktime Text Track" from Webaim.org

3. Export the caption file as Plain text. Edit the resulting .txt file by adding the following on top (copy and paste the next 4 lines into NotePad or some other plain text editor):

{QTtext}{font: Arial}{justify: center}
{size: 20}{backcolor:0, 0, 0}
{timescale: 30}
{width: 320}{height: 60}

and make sure all the time codes are in this format: [00:00:00.00]

You will probably need to add a leading 0.

You can experiment with changing the size of the captions in the {size: 20} tag above.

4. Caption the QuickTime Video. See "Using Quicktime to Add Captions" from Webaim.org except in step 8: do the following for QuickTime Pro 7:

Window > Show Movie Properties, on the Text Track Visual Settings tab, set the offset to move the caption down. Play with the size and offset until it looks good.

5. Save the resulting Quicktime .MOV file with the overlaid subtitles.

6. Use ListGarden RSS Feed Generator Program to create the XML file for the vodcast.

7. Upload your subtitled .MOV (or MP4) video file, XML file, and the transcript to a web server (Blackboard)

8. Post and create links for the video file, XML file, and transcript on your web/Blackboard page.


Additional Links regarding Podcasting

The freeware Subtitle Workshop can also be used to create the subtitles, but I found it more difficult to time stamp the captions than MAGpie. However, Subtitle Workshop does make it easier to SaveAs "QuickTime text" without having to edit the resulting text file.

A transcript MUST be provided whether it is a podcast or a vodcast so that our students who are deaf and/or hard of hearing can access the content even if they don't have the necessary multimedia software.

Questions/Comments, please contact:

bill - straub at redwoods dot edu

 

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