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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