To ensure user comfort and respect, audio content must not play automatically.

Objectives

• Allow users to control the volume during playback.
• Prevent unexpected audio playback that could disrupt or startle the user.
• Improve accessibility for users with disabilities, particularly those using screen readers.

Implementation

• Ensure the HTML
• Add the noSoundHazard metadata to the OPF file.

Control

• Verify that no audio content starts playing automatically when the page or document is opened.