Using Captions to Develop a Searchable Video Library
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Using Captions to Develop a Searchable Video Library
COLTT 2013
Josh Miller [email protected]
Tel: (617) 764-5189 x102
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Agenda
Accessibility trends
Captioning basics
Process
Accessibility legislation
Value propositions
Using captions for search
Demos
Open discussion
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Accessibility: a Growing Concern
• More than 1 billion people have a disability
• 56.7 million report a disability in the U.S.
• 48 million (20%) in U.S. have some hearing loss
• 11% of postsecondary students report having a disability
• 45% of 1.6 million veterans sought disability
• 177,000+ veterans claimed hearing loss
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What Are Captions?
• Text that has been time-synchronized with the media
• Captions convey all spoken content as well as relevant sound effects
• Originated in the early 1980s from an FCC mandate for broadcast TV
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What Are Captions?
Terminology
• Captioning vs. Transcription
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What Are Captions?
Terminology
• Captioning vs. Transcription
• Captioning vs. Subtitling
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What Are Captions?
Terminology
• Captioning vs. Transcription
• Captioning vs. Subtitling
• Closed Captioning vs. Open Captioning
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What Are Captions?
Terminology
• Captioning vs. Transcription
• Captioning vs. Subtitling
• Closed Captioning vs. Open Captioning
• Post Production vs. Real-Time
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How Are Captions Used?
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Accessibility Laws
Section 504 • Part of Rehabilitation Act of 1973 • Anti-discrimination law
Section 508 • Added to Rehabilitation Act in 1986 • Applies to federal agencies and organizations
with federal subsidies
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Accessibility Laws
Section 504 • Part of Rehabilitation Act of 1973 • Anti-discrimination law
Section 508 • Added to Rehabilitation Act in 1986 • Applies to federal agencies and organizations
with federal subsidies
ADA • Updated in 2008 via ADAAA • For schools, same requirements as Section 504 • Netflix lawsuit implications
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Accessibility Laws
Section 504 • Part of Rehabilitation Act of 1973 • Anti-discrimination law
Section 508 • Added to Rehabilitation Act in 1986 • Applies to federal agencies and organizations
with federal subsidies
ADA • Updated in 2008 via ADAAA • For schools, same requirements as Section 504 • Netflix lawsuit implications
21st Century Communications & Video Accessibility Act (CVAA) • Applies to content that airs on TV and the
Internet.
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Accessibility Laws
CVAA Phase-In Timeline Phased In: All prerecorded programming that is not edited for Internet distribution
Phased In: Live & near-live programming originally broadcast on television.
Sep 30, 2013 : Prerecorded programming that is edited for Internet distribution.
Mar 30, 2014: Archival programming
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Value Propositions
• Accessibility for deaf and hard of hearing
• For ESL viewers
• Flexibility to view anywhere, such as noisy environments or offices
• Search
• Reusability
• Navigation, better UX
• SEO/discoverability
• Used as source for translation
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Captioning Process
1. Upload 2. Download 3. Publish
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Step 1. Upload Media Files
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Step 2. Download Captions File
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Captions Formats
Common Caption Formats
SRT YouTube and other web players
DFXP Flash players
SCC iPods, iTunes, DVD encoding
SAMI Windows Media
QT QuickTime
STL DVD Studio Pro
CPT.XML Captionate
SBV YouTube
RT Real Media
WebVTT Emerging HTML5
Custom XML Custom formats
Custom Text Custom formats
SRT Example
Emerging standards for HTML5
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Step 3. Publish Captions
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Simplifying the Workflow Video Player / Platform Integrations
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Captions Plugin
• Works with most video players
• Searchable • Supports multiple
languages
• SEO boost • Customizable • Free
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Using Captions for Search
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Demos
• Implementations of captions + transcripts
• Examples of automated captioning workflows
• Searchable, interactive video libraries
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Captioning + Search with Lecture Capture
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Searchable Interactive Transcript
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Search By Speaker ID
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Searchable Captions + Transcript
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Search Across Large Video Libraries
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Searchable MOOC
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Results @ MIT OpenCourseWare
97% of students said interactive transcripts enhanced their learning experience
Significantly enhances (57%)Enhances (40%)Detracts (1.7%)Greatly detracts (3.4%)
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Results @ MIT OpenCourseWare
95% of students were able to find desired content using the search features
Very successfulSomewhat successfulSomewhat unsuccessfulVery unsuccessful
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Results @ MIT OpenCourseWare
97% of students said the interactive transcripts were easy to use
Very easy (72%)Somewhat easy (25%)Somewhat difficult (2%)Very difficult (1%)
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Resources
http://www.3playmedia.com/how-it-
works/overview/
Questions
Josh Miller 3Play Media [email protected] Tel (617) 764-5189 x102