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📱 www.3playmedia.com l @3playmedia l #a11y
Hi, I’m Jaclyn.
Content Marketing Associate at 3Play Media
I write content on all things video accessibility.
Reach me at email@example.com
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On today’s agenda...
What are captions? 🔬
How do you create captions? ✍
Where do you publish captions? 🖥
Why should you caption? 👍
Who is 3Play Media? 🏢
Live Captioning vs. Closed Captioning
For live events like
classes, meetings, or
Computer processing or
Captions vs. Subtitles vs. Transcripts
Captions assume the
viewer can’t hear the
Subtitles translate the
audio into another
text of the audio that
● Do it yourself
● Use ASR (Automatic Speech
● Use a captioning vendor
How to create
Use a software or do it manually.
Check which formats your video
Transcribe your video
Make sure to capture non-speech
elements & include speaker IDs.
Human Editing Cleanup
Human Quality Review
99% accuracy rate
15 errors total per 1,500 words.
Captions are typically placed in the
lower center of the screen, but should
be moved when obstructing visual
DCMP, FCC, and/or
Note: For live captioning the accuracy is
usually over 90%
41% of videos are incomprehensible
without sound or captions.
You’ll get more
In revenue earned by web pages with
video transcripts compared to those
Greater organic traffic for videos
with captions according to
of consumers are watching video on
mobile with the sound off.
Captions improve brand recall, verbal
memory, and behavioral intent.
Video accessibility also benefits students
Of students find
Of students use
captions to help
Of students that
use captions said
they use them as
a learning aid
Accessibility lawsuits to know
NAD v. Harvard & MIT
NAD argued that educational online videos should be constituted as a
NAD v. Netflix
NAD argued that Netflix’s lack of closed captioning for streaming videos
was a violation of the ADA.
Goal: Make Accessible Video Easy
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