Secondary Audio Programming (SAP) is a linear television term referring to additional audio tracks that provide alternative language options or audio descriptions (AD) for visual content. In the US, SAP is frequently used to deliver audio descriptions for visually impaired viewers and Spanish-language audio for linear TV programs. These guidelines require the separation of SAP into multiple audio tracks like the experience available on some streaming services.
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- 1. Hearing Accessibility
- 2. Vision Accessibility
- 2.1 Visual Accessibility
- 2.1.1 Animations
- 2.1.2 Font Sizes and Color Contrast Ratios
- 2.1.3 Customizable Color Settings, Zoom, and Font Scaling
- 2.1.4 Focus, Hover, and Navigation Behaviors
- 2.1.5 Emergency Alert Presentation for Embedded Banners
- 2.1.6 Emergency Alert Presentation for Modals
- 2.2 Non-Visual Accessibility
- 2.2.1 Assistive Technologies
- 2.3 Secondary Audio Programming (SAP)
- 2.3.1 Multiple Languages for Main Content Audio
- 2.3.2 Audio Description (AD)
- 3. Cognitive Accessibility
- 3.1 Consistency and Clarity
- 3.1.1 Information, Instructions, and Prompts
- 3.1.2 Controls
- 3.1.3 Labels
- 3.1.4 Ordering
- 3.2 Context Changes
- 3.2.1 UI Context Changes
- 3.3 Difficult Tasks
- 3.3.1 Timed Tasks
- 3.3.2 Account Authentication and Creation
- 3.4 Error Prevention and Resolution
- 3.4.1 Preventing and Reversing Accidental Actions
- 3.4.2 Error Resolution
- 4. Motor Accessibility
- 5. Language Support
- 6. User Controls
- 6.1 Persistence
- 6.1.1 Settings Selections
- 6.2 Interface and Appearance Customizations
- 6.2.1 Alternative Themes Including Dark Mode
- 6.2.2 Text Customizations
- 6.2.3 Disable Animations
- 6.2.4 Text-to-Speech and Screen Reader Controls
- 6.3 Navigation
- 6.3.1 Directional Navigation
- 6.3.2 Search, Shortcuts, and Keystrokes
- 6.4 Video Player Customizations
- 6.4.1 Player Control Settings
- 6.5 Auto-Play Events
- 6.5.1 Auto-Play Settings
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- 2. Vision Accessibility
- 2.3 Secondary Audio Programming (SAP)