THE MERMAID’S TEARS: CREATING THE WORLD’S FIRST LIVE INTERACTIVE OBJECT-BASED RADIO DRAMA C H R I S B A U M E , SE N I OR R E SE A R C H E N G I N E E R 12 TH A PRI L 2018
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4 INTRODUCTION ADVANTAGES OF OBJECT-BASED AUDIO Immersive Personalised Interactive Accessible
5 INTRODUCTION CHALLENGES OF OBJECT-BASED AUDIO Production Broadcast infrastructure • Metadata description • Metadata generation • Distribution Metadata interchange • Emission and coding • Rendering Tools • Consistency •
6 INTRODUCTION THE ORPHEUS PROJECT orpheus-audio.eu @orpheus_audio
7 THE MERMAID’S TEARS
8 THE MERMAID’S TEARS FEATURES
9 THE MERMAID’S TEARS DEMO Launch demo
10 THE MERMAID’S TEARS EVALUATION RESULTS 1066 listeners, 115 rated “Which feature did you enjoy most?” Switching characters 38% Immersive sound 32% Illustrations 10% % “How many times did you listen?” Once 59% Twice 38% Star rating More 2% “Having a choice of story-lines felt…” “Should we do more stuff like this?” Richer 49% Yes 88% Incomplete 18% No 6%
11 CREATING THE MERMAID’S TEARS
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13 CREATING THE MERMAID’S TEARS SOLUTION Production Broadcast infrastructure → IP Studio and NMOS • Metadata description → Universal Media Composition Protocol (UMCP) • Metadata generation → Audio control interface • Distribution Metadata interchange → Audio Definition Model (ADM) • Emission and coding → MPEG-DASH with AAC or MPEG-H • Rendering Tools → BBC Audio Toolkit • Consistency → EBU ADM Renderer •
14 CREATING THE MERMAID’S TEARS IP STUDIO AND NMOS
15 CREATING THE MERMAID’S TEARS AUDIO DEFINITION MODEL (ADM)
16 CREATING THE MERMAID’S TEARS UNIVERSAL MEDIA COMPOSITION PROTOCOL (UMCP)
17 CREATING THE MERMAID’S TEARS AUDIO CONTROL INTERFACE
18 CREATING THE MERMAID’S TEARS EMISSION AND CODING
19 CREATING THE MERMAID’S TEARS BBC AUDIO TOOLKIT (BBCAT)
20 CREATING THE MERMAID’S TEARS EBU ADM RENDERER (EAR) Reference implementation: https://github.com/ebu/ebu_adm_renderer
21 SUMMARY • OBA opens up new audience experiences • IP infrastructure makes OBA more achievable • Listeners responded well to our interactive radio drama • We demonstrated a live end-to-end object-based broadcast chain • There are emerging tools and standards for OBA • The future of radio is • immersive • personalised • interactive • accessible
22 THANKS CONTACT & FURTHER READING/LISTENING Contact me: chris.baume@bbc.co.uk • Listen at home: http://mermaidstears.ch.bbc.co.uk/ • Further reading: https://orpheus-audio.eu/ • https://radioworld.com/news-and-business/objectbased-media-transforms-audio- • content-creation
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