WCAG 1.2.7: Extended Audio Description (Prerecorded)
Level AAAQuick answer: When standard pauses are too short to describe key visuals, an extended described version should pause the action and provide fuller narration.
What This Means
On ecommerce sites, Extended Audio Description (Prerecorded) usually shows up in repeating storefront components such as product cards, PDP media, search results, cart drawers, checkout forms, and support content. If the live experience depends on patterns like fast-paced style videos change outfits before the standard audio can describe them. or assembly clips race through steps with no time to narrate visual-only actions., disabled shoppers can lose context or get blocked before purchase.
This criterion matters because D2C teams often fix the homepage but miss reusable app blocks, campaign pages, and mobile-specific UI. The practical standard is simple: build the same outcome for keyboard users, screen-reader users, low-vision users, and anyone relying on captions, labels, structure, or predictable behavior.
For Shopify, WooCommerce, and custom storefronts, the fastest remediation path is usually template-level work. Fix the repeated component once, then retest every place it appears across browse, buy, and post-purchase journeys.
Common Violations on Ecommerce Sites
- Fast-paced style videos change outfits before the standard audio can describe them.
- Assembly clips race through steps with no time to narrate visual-only actions.
- Before-and-after beauty demos depend on rapid visual transitions.
- Interactive product-tour recordings animate menus too quickly for concise description.
How to Fix It
Start with the live customer journey, not isolated components in Storybook or Figma. Audit the problem on category pages, product detail pages, quick views, cart, checkout, account, and help templates.
- Produce an extended-described version that pauses during complex visual changes.
- Identify videos where normal audio-description timing cannot cover what matters.
- Use extended description for detailed tasks, charts, and transformation demos.
- Offer the extended version as a clearly labeled alternative near the main player.
On Shopify, fix the theme section or app block that repeats the defect. On WooCommerce and WordPress, update the template override or plugin output. In custom React or headless storefronts, move the fix into shared components so merchandisers cannot reintroduce the issue with every campaign.
Code Example
<!-- Before -->
<video controls src="tour.mp4"></video>
<!-- After -->
<video controls src="tour-extended-description.mp4"></video>FAQ
What is WCAG 1.2.7?
When standard pauses are too short to describe key visuals, an extended described version should pause the action and provide fuller narration.
How does WCAG 1.2.7 affect ecommerce sites?
It affects ecommerce anywhere shoppers interact with fast-paced style videos change outfits before the standard audio can describe them. and assembly clips race through steps with no time to narrate visual-only actions. If those patterns are inaccessible, customers can miss product information, fail forms, or abandon checkout.
How to fix WCAG 1.2.7 violations?
Start by auditing the live storefront, then Produce an extended-described version that pauses during complex visual changes.; Identify videos where normal audio-description timing cannot cover what matters.; Use extended description for detailed tasks, charts, and transformation demos.. Prioritize templates and apps that repeat the issue across product, cart, checkout, and account pages.
Check if your store passes WCAG 1.2.7 → Free ADA Compliance Scan