Checkpoint 503.4.2: Audio Description Controls

Where user controls are provided for program selection, ICT shall provide user controls for the selection of audio descriptions at the same menu level as the user controls for volume or program selection.


Controls related to audio descriptions are just as important and useful as controls for volume and language functions. It should be easy and obvious to find and access all associated audio description controls.

Development Techniques

Note: Review the General techniques as well as other tabs applicable to your technology.  Prioritize the use of technology-specific techniques, and implement the General techniques as needed. You are always required to find, understand and implement accessible code techniques to meet the checkpoint. The documented techniques and supplements are not exhaustive; they illustrate acceptable ways to achieve the spirit of the checkpoint. If numbered, techniques are in order of preference, with recommended techniques listed first.

General techniques

Each item in this section represents a technique deemed sufficient for meeting this checkpoint.

For compliance reporting, where the requirements of 7.3 User Controls for Captions and Audio Description are met, 503.4.2 can also be considered to be met.

Mobile Native (iOS) techniques

In addition to the General techniques, the Mobile Native iOS techniques in this section represent techniques deemed sufficient for meeting this checkpoint.

  • Using the standard video viewer when displaying an audio-described video in an iOS environment

Eclipse techniques

There are no specific Eclipse techniques for this checkpoint. Refer to the General techniques section.

Windows-based (MSAA+IA2) techniques

There are no specific Windows-based (MSAA+IA2) techniques for this checkpoint. Refer to the General techniques section.

Many links in this checklist reside outside at the Web Content Accessibility Guidelines (WCAG) 2.1. W3C Recommendation 05 June 2018:

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