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Object-Based Audio In Programme Making Chris Pike BBC R&D - PowerPoint PPT Presentation

flexible,and responsive to user, environmental and platform specific factors. Object-Based Audio In Programme Making Chris Pike BBC R&D flexible,and responsive to user, environmental and platform specific factors. What is Object-Based


  1. flexible,and responsive to user, environmental and platform specific factors. Object-Based Audio In Programme Making Chris Pike BBC R&D

  2. flexible,and responsive to user, environmental and platform specific factors. What is Object-Based Broadcasting?

  3. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting

  4. flexible,and responsive to user, environmental and platform specific factors. Why Object-Based Broadcasting?

  5. flexible,and responsive to user, environmental and platform specific factors. New Content Experiences Immersive Accessible O Accessible b Immersive j e c t - B Personalised a Personalised s flexible,and responsive to user, environmental e d and platform specific factors. B g r n o i t a Interactive s d a c Interactive

  6. flexible,and responsive to user, environmental and platform specific factors. RESPONSIVE AUDIO CONTENT

  7. flexible,and responsive to user, environmental and platform specific factors. Object-based audio is recommended for the advance sound system for programme production by the ITU.

  8. flexible,and responsive to user, environmental and platform specific factors. Applications of Object-Based Broadcasting

  9. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Immersive

  10. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Immersive

  11. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Immersive audio + 
 meta-data Object-Based Object-Based Stereo Production System Rendering 5.1 Binaural ? 3D multichannel

  12. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Accessible

  13. � � � � � � � the player’s user interface. � flexible,and responsive to user, environmental and platform specific factors. � Trial Set-up User experiences - Accessible -to-end BBC White Paper WHP272: Object-Based Audio Applied to Football Broadcasts: 
 The 5 live Football Experiment 2013

  14. flexible,and responsive to user, environmental and platform specific factors. Audience Feedback User experiences - Accessible BBC White Paper WHP272: Object-Based Audio Applied to 8% Football Broadcasts: 
 5% The 5 live Football Experiment 9% Much better 2013 Slightly better About the same 55% Slightly worse Much worse 22% How would you rate the experience compared to traditional radio broadcast?

  15. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Personalised Radio Player

  16. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting Responsive Radio Radio Player Radio Player • Adjust programme length • Dialog enhancement • Foreground/background balance • Pause with 
 background music

  17. flexible,and responsive to user, environmental and platform specific factors.

  18. flexible,and responsive to user, environmental and platform specific factors.

  19. flexible,and responsive to user, environmental and platform specific factors. Audience responses Variable-length programme

  20. flexible,and responsive to user, environmental and platform specific factors. Audience responses Variable-length programme

  21. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting Responsive Radio • A graph represents the narrative and the structure of the programme. • This is linked to the media elements and the narrative constrains curated by the programme maker.

  22. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting Responsive Radio Graph Database Player Assets Media Atoms • The media objects of the programme are delivered to the browser which assembles it based on the preferences of the listener. Server • The programme becomes responsive to the listener and their preferences. Narrative Multichannel User Rendering Algorithms Interface Browser

  23. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Interactive

  24. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Interactive

  25. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Interactive

  26. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Interactive

  27. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting User experiences - Interactive

  28. flexible,and responsive to user, environmental and platform specific factors.

  29. flexible,and responsive to user, environmental and platform specific factors.

  30. flexible,and responsive to user, environmental and platform specific factors.

  31. flexible,and responsive to user, environmental and platform specific factors. Preview Preview

  32. flexible,and responsive to user, environmental and platform specific factors. Preview

  33. flexible,and responsive to user, environmental and platform specific factors. Challenges of Object-Based Broadcasting

  34. flexible,and responsive to user, environmental and platform specific factors. Conceptual challenge: the renderer A transformational change

  35. flexible,and responsive to user, environmental and platform specific factors. Implementation challenge: scalability and sustainability

  36. flexible,and responsive to user, environmental and platform specific factors. Object-based audio under discussion

  37. flexible,and responsive to user, environmental and platform specific factors. The ITU has recommended a metadata model for object-based audio. The Audio Definition Model (ADM) can be used to store advanced sound formats using the broadcast wave file (BWF). Ongoing work in WP6B. BBC R&D has developed a reference software - available as open source. http://www.bbc.co.uk/rd/publications/ audio-definition-model-software

  38. flexible,and responsive to user, environmental and platform specific factors. Implementation challenges Production • Production formats (stream and file) • Production environments (monitoring, quality control, baseline renderer) • Workflows and tools (production on scale) • Interfaces to existing systems 
 Delivery • Codecs and delivery mechanisms • Interfaces 
 Consumption • Platform (reproduction, user interaction, environment) • Devices

  39. flexible,and responsive to user, environmental and platform specific factors. Object-Based Broadcasting • Enables new user experiences, ranging from traditional broadcasting to interactive experiences • Object-based broadcasting has the potential to be transformational • Technology and standards are emerging • Tools are required to create and evaluate the content • Editorial control is more important then ever

  40. flexible,and responsive to user, environmental and platform specific factors. Thank you! chris.pike@bbc.co.uk

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