What Does Accessibility Mean for Multimedia?

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Carie Fisher

Sr. Accessibility Trainer/Dev @ Deque Systems HCI Ph.D. Student @ Iowa State University Pronouns: she/her Twitter/LinkedIn: @cariefisher Slides: noti.st/cariefisher

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Agenda

Intro to Multimedia & WCAG What Are Captions? What Are Transcripts? What Are Audio Descriptions? What is Sign Language Interpretation? Tips & Tricks for Multimedia

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01 Intro to Multimedia & WCAG

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Accessibility Talks (a11yTalks)

Accessibility Talks (a11yTalks) Website: a11ytalks.com YouTube: youtube.com/c/accessibilitytalks

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Multimedia Types & WCAG Requirements

Captions Transcripts Audio Descriptions Sign Language Interpretation

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02 What Are Captions?

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Captions...

Are not the same as subtitles Include text synchronized with multimedia Are for people who cannot hear the spoken words Are considered either “open” or “closed”

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Example of Open & Closed Captions

Resource: youtu.be/k6VmSjEIiks

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Example of Captions (language view)

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Example of Captions (edit view)

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Auto-Captioning

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Example of Bad Captions

Resource: youtu.be/7MuDgfX9C2w

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WCAG Requirements for Captions

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03 What Are Transcripts?

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Transcripts...

Are text-based documents with spoken words and important visual info Include sound effects and other visual descriptions Are similar to captions but include more details and time-stamps Are helpful for many people and SEO

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Example Transcript (landscape)

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Example Transcript (portrait)

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WCAG Requirements for Transcripts

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04 What Are Audio Descriptions?

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Audio Descriptions...

Include a narrator who explains visual information verbally Convey visual information that dialogue and other sounds cannot When very detailed are called extended audio descriptions Primarily help people who are blind or have low vision

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Example Audio Description

Can you guess the mystery movie trailer in this audio clip?

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Example Audio Description

Resources: youtu.be/O7j4_aP8dWA (trailer with AD) youtu.be/z1qy5wSZAQI (trailer without AD)

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WCAG Requirements for Audio Descriptions

Note: If all of the information in the video track is already provided in the audio track, no audio description is necessary.

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WCAG Requirements for Extended Descriptions

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05 What Is Sign Language Interpretation?

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Sign Language Interpretation...

Can be cost-prohibitive to many organizations Is when you add a video or live-stream of an interpreter Is very important for people who are Deaf Includes 300 different versions throughout the world