Digital A11y

Aparna Pasi

About Aparna Pasi

Digital Accessibility Consultant, speaker and blogger with an experience of 12 years. Interested to bring change in design via User centered design, Usability Testing and Interaction Design.
Residing in Hyderabad, with my two kids and husband. Advocating about accessibility is my passion.

Captions – What to expect?

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Why Do We Need Captions?

I travel quite a bit to work and back home. While I am commuting, I often tend to watch movies or series on my mobile. Now, do I have co-watchers, who do this every day, oh yes! With traffic and other sounds, am I able to follow the video or the content present in the video, unfortunately, I have to say, ‘Only sometimes.’ Visualize this scenario for yourself! Then, you would find the answer for the question ‘why we need captions?’
Just to let everyone know, I can hear well; at least I think so 

Myth that captions are meant for people with hearing disabilities is untrue as any user can benefit from captions. To summarize the benefits of captions – they help:

  • people understand your video with sound cues even when they are at public places
  • Captions provide a whole different user experience for users who have difficulty following a foreign accent
  • Captions help users with hearing difficulties to consume the video content just like anyone else.

In addition to these, subtitles and interactive transcripts will help your video to be loved by Google, by improving your SEO ratings. Want to know how to improve your SEO ratings through captioning your videos?
Go here.

What does WCAG expect?

WCAG, which stands for, Web Content Accessibility Guidelines, asks for certain considerations for captions and subtitles. First of all, it is important to note that captions are important for people who are deaf. For deaf users to be able to understand the video or audio it is imperative to provide captions or text transcripts.

  1. WCAG SC 1.2.1 – asks for text transcripts for audio only content. Ideally what it asks for is textual transcription of audio content present on the webpage.
  2. WCAG SC 1.2.2 – asks for captions to be provided for videos that are present on the webpage. Only exception is when it is an alternative for the textual content.
  3. WCAG 1.2.4 – asks for captioning to be present for live media. Ideally, any live media that is telecasted must have captions to be present.

Points to Ponder

  • Captions are best when videos with dialogs, discussions and many sound cues are plenty like in movies
  • Transcripts are best for silent videos, speeches, video lectures etc.
  • Interactive transcripts are best for multimedia that are interlaced with lectures and texts too.

Captions and text transcripts are not a very hard nut to crack. Go ahead and try it out in your videos.

Continue reading Captions – What to expect?

Multimedia Accessibility: I Hear and Read What You See!

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If I ask one of my friends to watch a video closing his eyes and explain the info, naturally, he/she would ask “Are you out of mind”? I know it’s weird to do so. But every day people who are blind watch videos like that and it is not weird for them.

If I ask another friend to watch a movie closing his/her ears and explain the emotions that are conveyed through music, dialogues and sounds, he would ask the same question like the other one. But people who are deaf watch videos like that and they don’t feel it is weird.

I know what we all of us are wondering about both the scenarios. Do they get to understand, emote and get all the information conveyed through these multimedia presentations? Well, we hit the nail on its head. In most of the cases, the answer is “no, no, a thousand times no!” People who are blind, deaf and deaf-blind belong to the same user group for whom we build the content with texts, images, audio and video. So no information should be left out by people who have sensory disabilities.

For the same reasons mentioned above and many more, it is necessary to incorporate accessibility into multimedia. Now that we have specified the need for multimedia accessibility, you might be wondering on how to do it and this article will come to anyone’s rescue, who, wants to know the basics of multimedia accessibility.

What is multimedia accessibility?

Multimedia accessibility can be explained as the delivery of the information, intent and content presented in videos and audios immaterial of user’s disability. The core areas of multimedia accessibility are – text transcripts, audio descriptions and synchronized captions.

Captions

Captions are words spoken in the video that are presented in a textual format. They address the need of users who are not accessible to audio by providing the content information via textual format. Along with deaf users, common users receive the benefit, as it is sometimes difficult for them to listen and grasp the content present in the multimedia.

The three main criteria that need to be considered for captions are:

  1. Synchronized – captions must be synchronized or available at the same time with the video and audio content.
  2. Accessible – captions must be accessible with respect to color contrast of the text and background or even the placement of the text on the video.
  3. Textual equivalent – captions must present the same content that is being displayed or heard in the multimedia content.

Addressing these 3 criteria satisfies most of the WCAG success criteria as well.

Intended Users for Captions – Deaf Users and any users who do not comprehend the language or slang in which dialogues are spoken.

Text Transcripts

Text transcripts are a way for deaf and Deaf-blind users to know the content of an audio podcast. Transcripts don’t have to be literal of the dialogue but must contain additional details that are present, for example when there is music, or any other sound, the same should be mentioned in the transcript. Transcripts and captions must be present for a video file whereas transcript alone will suffice the need for audio only content.

It is important to note that WCAG requires both transcript and captions for multimedia content to be completely accessible.

Intended Users for Text Transcripts – Deaf, blind and Deaf-blind users

Audio Descriptions

Audio description is mainly aimed at users with visual disabilities. We often visualize scenes in a movie with no dialogues and background music. As sighted users, we understand the context and content but for non-sighted user the same doesn’t apply. Audio descriptions address that gap and thus are very important for blind and visually impaired users.

Audio description must be provided for videos where there is no audio and in scenarios where audio is missing. Verbal explanation of what is being visually shown is what makes an audio description useful for non-sighted users.

Intended Users for Audio Description – Blind users

Conclusion

After this brief read, you might have an idea on what needs to be done as part of being accessible with regards to multimedia. If you can remember to add captions, audio descriptions and text transcript which would take little effort, you will help many users to have a pleasant experience watching videos or hearing to audio content present in your website or webpage.

For more information & resources related to multimedia accessibility you can check our Accessible Media Players post.

Continue reading Multimedia Accessibility: I Hear and Read What You See!