Audio Description Formats Explained
Updated: January 24, 2019
We aren’t joking around when we say that our goal is to make video accessibility easy. Traditionally, publishing audio description has posed a real challenge, as it is not supported by most video players and platforms. To make the publishing of audio description easier, we offer a number of different download formats; some text based, and some media based to meet your every need. In this post we’ve broken it down to explain each of the different audio description formats.
Text based format
- Text based assets include the audio description in text form. These can be downloaded as a WebVTT, TXT, DOC, Merged TXT, Merged DOC, Stamped Doc, and Merged Doc (Stamped). These formats provide the least amount of accommodation, as they tend to lose some of the cinematic detail compared with the media based formats. Additionally, the non stamped files do not provide time codes. The text only merged transcript and description is very helpful for deaf-blind viewers, as it contains both the transcript of the audio and your video, as well as the description of the visual information in your video.
Media based formats
- Audio description only media assets include just the the audio description alone, without the source audio. This format can be downloaded as an MP3, OGG, or WAV.
- Mixed audio description + source media assets include the audio description, the source media, and the captions combined into one file. This format can be downloaded as an MP4, MP3, OGG, or WAV.
How to Publish Audio Description
Being that most popular video players and platforms do not support WebVTT description tracks or secondary audio tracks we provide the 3Play Plugin for simplicity.
Our plugin is a simple embed that references your video and plays the secondary audio description track along with your video, making it a great option for video players that don’t support audio description in a usable way. It’s also a great alternative to having to create a second version of the video with description. Give it a try below and then get started:
Drop Frame vs. Non-Drop Frame and How It Affects Captions & Subtitles
If you’ve never heard of drop frame (DF) or non-drop frame (NDF) captions, that’s no problem. After reading this blog, you’ll have the knowledge that you need to utilize DF and NDF captions and to even teach others about it. First, you…
The Forest and the Trees: Scaling for Enterprise-Level Digital Accessibility
In the webinar entitled, “The Forest and the Trees: Scaling for Enterprise-Level Digital Accessibility,” Kathryn Weber-Hottleman discusses the narrow practical how-tos and the broad organizational plan for a digital accessibility program. Kathryn brings many years of experience as the IT Accessibility…
The European Web Accessibility Directive
There are 80 million people across the European Union (EU) living with a disability. Several large-scale accessibility efforts have been implemented in the EU over the last year, as part of an ongoing effort to address and prioritize accessibility for these individuals,…