TUC 2012 Friday, April 20 th 9:15 – 10:00 Closed Captioning Best Practices
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Transcript of TUC 2012 Friday, April 20 th 9:15 – 10:00 Closed Captioning Best Practices
TUC 2012 Friday, April 20th 9:15 – 10:00
Closed Captioning Best Practices
Dr. Leyla Zhuhadar: Western Kentucky University
Western Kentucky University Leyla Zhuhadar
Established in1906 Bowling Green, KY Enrollment ~
21,000
Distance Learning: ~ 450 faculty ~ 400 online courses ~ 20% of total enrollment per year
Tegrity Usage @ WKU (2007-2012)
0
2000
4000
6000
8000
10000
12000
14000
5001,607
3,049 3,1793,668
1,670
13,673Number of Recordings by Faculties (2007-2012)
2007 2008 2009 2010 2011 2012 Grand total
Courses Used Tegrity = 1,496 Faculty Used Tegrity = 590 All-Time Total Recordings =
30,391 Recording Hours = 8,194
Tegrity Usage @ WKU (2007-2012)
0
100000
200000
300000
400000
500000
600000
700000
4,301 29,266
160,294190,380 189,942
50,652
624,835
Number of Viewing by Students (2007-2012)
2007 2008 2009 2010 2011 2012 Grand total
Courses Used Tegrity = 1,496 Faculty Used Tegrity = 590 All-Time Total Recordings =
30,391 Recording Hours = 8,194
Multimedia Usage @ WKU (2007-2012)
0
50000
100000
150000
200000
250000
300000
0 511
1,27963,474 65,690
2,203
133,157
Session DownloadsM4V DownloadsMP3 DownloadsPodcast Downloads
2007 2008 2009 2010 2011 2012 Grand total
Closed Captioning (2007-2012)
0500
1000150020002500300035004000
500
1,607
3,049 3,179 3,668
500704
1,810
486992
f(x) = 583.938598690172 x^1.26204834174111R² = 0.94338928083889
2007 2008 2009 2010 2011 2012
Closed Captioning (2007-2012)
Year# of
Recordings
# of Closed-captioned
Recordings Percentage2007 500 500 100%2008 1607 704 44%2009 3,049 1,810 59%2010 3,179 486 15%2011 3,668 992 27%2012 1,670 425 25%
Grand total 13,673 4,917 ?
Optimistic 45%
Real 36%
Why we caption with Tegrity?Remove Barriers to faculty for teaching online!
Made the decision to caption ALL Tegrity videos produced for distance learning courses
Ongoing (forever) process ADA 508 was a concern! And it is the right thing to do
How we caption with Tegrity
Transcription team: undergrad work-study students
Closed-Captioning
Why we caption with Tegrity?
Transcription team: use a “Wave pedal” start/stop speed, etc.
Transcription team: about 2-3x time, $10 per hour
Programmer team: about $15 per hour
Total Cost = ~$25
How we caption with Tegrity
Closed-Captioning
Closed-Captioning file requires time stamps
[00:00:00.000]This is a recording showing the use and features of the 3M projectors and smart boards.[00:00:05.000]Testing #2[00:00:10.000]testing #3
How we caption with Tegrity
We wrote a little closed-captioning “Time Stamper” Java program Takes text transcript and creates time stamped
cc input file (*.txt format) Enter the starting and ending times of the
lecture in the (HH:MM:SS) format Output file is caption.txt Download: Tutorial & Software (URL)
How we caption with Tegrity
Tegrity captioning solution Edit -> “Add Closed Captioning”
How we caption with Tegrity
Tegrity captioning solution Browse to the “caption.txt” file and add it to
caption the video
How we caption with Tegrity
How we caption with TegritySample Showcase Recordings: Legal Environment of Business
We mark a closed-captioned session (CC)
How we caption with Tegrity
Additional Benefits Can upload the closed-caption file as
additional learning resource for students in additional content section
Captioning makes it easier for students to learn spelling and obscure terms
Can translate transcripts and have subtitles (dual language lectures)
“Searchability”
Accuracy in sync & Pros/Cons Accuracy: Up- to-US!
By default is around 70-80% accuracy Enhancement: semi-automatic fix (available)
(3x time)
Pros: Cost: $25 100% accuracy in sync Money stays “in house” Students learn
Cons: Time consuming
What we’d like to see change
Moving the closed-captioning under the Instructional Video Mobile users can see closed captions Bigger space more text = higher
level of accuracy! Additional Contents:
Copied at the same time when a user copy a course: in compliance with sections 508 (actual script is included)
Panel Qs & As