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NGA API Requirements

• Dialog Enhancement
• Enable/disable Dialog Enhancement
• Gain control
• Preselections
• Expose list of available preselections from inband signalling metadata
• Set the active preselection
• Object based audio control
• Expose list of available audio objects
• Enable/disable individual audio objects or groups of objects
• Gain and positioning adjustment for individual audio objects
• Initial focus on HTMLMediaElement / MSE integration, for file based and MSE based playback
• API is codec-agnostic, enable both AC-4 and MPEG-H features
• For the future: WebCodecs and Web Audio integration