Involvement
    ● EBU Groups:
       ● FAR-BWF (BWF file, audio expertise)
       ● MIM-MM (EBU Core, metadata expertise)
    What is the Audio Definition Model?
    ● Formalised way of describing audio for file 
      formats.
    ● Initial file format will be Broadcast WAV 
      (BWAV).
    ● Specified by EBUCore XML schema.
    ● Model can be used more generally.
    ● Aim to make it the primary description model for 
      as many formats as possible.
             Future Multichannel Audio
     ● Channel based
        ● e.g. stereo, 5.1, 22.2
     ● Scene based
        ● e.g. Ambisonics
     ● Object based
        ● Audio objects with stationary or moving spatial 
          properties.
     ● Combinations of all three
                 Cooking with Audio!
    ● Audio Definition Model is like a shopping list of 
      ingredients.
    ● Each ingredient has a formal description.
    ● BWAV file is like a shopping bag containing the 
      actual ingredients.
    ● BWAV 'chna' chunk is like the bar-codes on each 
      item.
    ● The ADM is NOT the recipe though! 
                   Terminology
    Track        A single set of samples or data in the storage 
                 medium.
    Stream       A combination of tracks (or one track) required to 
                 represent a channel, an object, or a group.
    Channel      A single sequence of audio samples.
    Block        A division of a channel in time.
    Pack         A set of audio channels that belong together.
    Object       A pack with time limited properties.
    Type         The type of audio channel, whether direct 
                 speakers, Ambisonic component, audio object, 
                 etc.
    Content      Objects with the actual audio. 
    Programme    A set of content that derived from the same 
                 material.