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Video Accessibility @ the UW: Overview & How We're Doing
Terrill Thompson Technology Accessibility Specialist UW-IT Accessible Technology Services (ATS)
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Video accessibility issues
Users can see video, but can't hear audio Solution: captions Users can't hear audio, but can't see video Solution: audio description Users can't see or hear video/audio Solution: transcript Users are: Using keyboard only (no mouse) Using a screen reader Using speech input Dependent on high contrast / custom color scheme Solution: An accessible media player
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How UW Does Accessible Video
Disability Resources for Students (DRS) and Disability Services Office (DSO) provide funding and support for captioning and audio description if individuals request it as an accommodation UW-IT Accessible Technology Services (ATS) provides internal grant funding for making high impact videos accessible as universal design practice ATS provides training and support (2 staff)
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Why Making Accessible Video Isn't an Undue Burden
Cost of Producing a 10-minute documentary-style video: $10,000 Cost to caption $2/min) = $20 (0.2%) Cost to describe $10/min) = $100 (1%)
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How We're Doing: Captioning YouTube Videos
58 known UW-affiliated YouTube channels Nearly 8,000 videos Over 2,700 hours of programming 18.4% are captioned Up from 7.6% in August 2015 12 channels (20.6%) have captioned over 50% of their videos 25 channels (43.1%) have captioned 0% Source: UW Video Caption Reports
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Doug Hayman dyhayman@uw.edu
Captioning Project Doug Hayman Susie Hawkey
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Overview of the Captioning Project
UW-IT short-term funding is available to caption: Videos available to the public on a high-use website Videos that will be used multiple times in a course Videos developed by several faculty members to be used in several different classes
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Captioning Project Progress
By the numbers: 630 videos have been captioned 169 hours of video have been captioned 11 departments excluding DRS have accounts with 3Play Media Captioned videos will be reused in 60 classes per year Over 750,000 individuals are estimated to watch the videos each year Increased the numbers of videos captioned on campus by 10.8%
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Captioning Project Progress (cont.)
Products: Created a video: “Making Videos Accessible” Promising Practice has been created to document how to setup a captioning project on a college campus
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Captioning Project Video
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Captioning Tips & Tutorials
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Overview of the Captioning Training
The training includes the topics: Captioning in YouTube Using Amara and Camtasia to assist in caption creation Facebook captions Uploading captions in Vimeo Setting up an account with 3Play Media Helpful hints
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Captioning Basics (1 of 3)
Anatomy of a caption file: SRT caption file Simple text file with time stamps that can be opened with Word, Notepad, etc.
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Captioning Basics (2 of 3)
DCMP Captioning Key This can be used as a resource if you are captioning your own videos and not using a captioning vendor
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Captioning Basics (3 of 3)
YouTube: Will create auto-generated captions Not accurate enough to be compliant Use the built-in editor to Correct auto-generated captions Create captions from scratch or Import a script and sync with the video
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How to setup Captioning Training
Contact Doug to setup training for: Individuals Departments General questions about captioning
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3-Play Media Departments can setup their own account by contacting:
Erin Batog Account Executive 3Play Media X109
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Links to Project Products
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Media Player Accessibility
Terrill Thompson Technology Accessibility Specialist UW-IT Accessible Technology Services (ATS)
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Able Player https://ableplayer.github.io/ableplayer
Free, open source, HTML5 media player Full support for HTML <track> element (captions, subtitles, descriptions, chapters, & metadata) Chapters, captions, & descriptions are automatically assembled into an interactive transcript Fully accessible player controls Supports multiple versions of a video (described vs non-described); user can toggle using "Description" button Can play YouTube videos
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Able Player Screen Shot
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Able Player is just HTML
<video data-able-player> <source type="video/mp4" src="path_to_video.mp4"> <track kind="captions" src="path_to_captions.vtt" srclang="en" label="English"> <track kind="subtitles" src="path_to_es.vtt" srclang="es" label="Espanol"> <track kind="descriptions" src="path_to_desc.vtt"> <track kind="chapters" src="path_to_chapters.vtt"> </video>
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Audio Description Terrill Thompson Technology Accessibility Specialist
UW-IT Accessible Technology Services (ATS)
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Which videos are the highest priority?
As with captioning, need to prioritize Videos that are required viewing for students who need description (an accommodation) Videos that are likely to be required viewing for students who need description Videos that: Are popular Provide critical content Discuss Demo 1 again; show Demos 2 & 3
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Multiple Methods of Producing Audio Description
Separate "audio described version" of the video Human-narrated description Description narrated using synthesized speech A WebVTT description file Plain text, easy to produce Description is read aloud by screen readers The standard method, using HTML5 <track> Currently only supported in Able Player A second, user-selectable, audio track Uses one method for all audio tracks (e.g., audio description, director's cut, translated/overdubbed) Supported in JW Player and Video.js (but not in all browsers; depends on HLSV4 support)
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WebVTT Format Stands for "Web Video Text Tracks"
WEBVTT 00:00: > 00:00:02.000 Michael Young, President, University of Washington 00:00: > 00:00:44.000 Tracy Mitrano, Director of IT Policy, Cornell University 00:01: > 00:01:32.000 Edward Ray, President, Oregon State University
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How can we create our own WebVTT description track?
Simply use your favorite text editor (e.g., Notepad) Use any captioning tool Amara.org Dotsub.com NCAM Caption and Description Editing Tool (CADET)
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Captioning Tool Example
Shown: Amara.org
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Which method should we use? (continued)
If dramatic work: Outsource for human-narrated description Link to the "Described version" Else if need for description is minimal and simple: If using Able Player: Do It Yourself! Create a WebVTT file Else: Outsource for human-narrated description OR text-to-speech
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Which vendors provide human-narrated description?
"Services Involved with Audio Description" List of 75+ providers In Spring 2017, narrowed the list to 18 providers that seemed to provide relevant services, contacted each by or web form Prices vary significantly, based in part on complexity of the description ($12 - $75/min.) Turnaround: 24 hours – 6 weeks Final list: 8 providers
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Eight audio description vendors
Human-Narrated ($12-15/min) Access USA Audio Eyes Caption Max Mind's Eye Audio Productions Valerie H Productions WGBH Media Access Group Synthesized Speech ($10/min) 3PlayMedia Automatic Sync
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If using 3PlayMedia, which voices/speeds are best?
Research: Three students who use description Watched 9 versions of two short videos Voices: Michael, Allison, Kate (British) Speeds: Slow, Medium, Fast Watched 7 additional videos, described with various settings Results: Male/female voice should be distinct from voice of speaker(s) in video Slight preference for Medium Michael Slight tendency to dislike the fast voices, especially Fast Kate.
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How can we deliver a "described version"?
Add a link: "Available with audio description" Use Able Player Supports multiple versions of a video (described vs non-described); user can toggle using "Description" button Supports text-based audio description, announced by screen reader; user can toggle using "Description" button
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Example Link to Described Version
Source:
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For More Information… UW Accessible Technology Creating Accessible Video DO-IT Videos
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