Capitalised Terms have the meaning defined in Table 1. Lowercase Terms have the meaning commonly defined for the context in which they are used.

A dash “-” preceding a Term in Table 1 indicates the following readings according to the font:

  1. Normal font: the Term in the table without a dash and preceding the one with a dash should be read before that Term.
  2. Italic font: the Term in the table without a dash and preceding the one with a dash should be read after that Term.

All MPAI-defined Terms are accessible online.

Table 1 – Terms used by CAE-6DF

Terms Definitions
Audio Object A Data Type including:
1.      Data perceptible by an audio device or a human when rendered.
2.      A Qualifier specifying Format and Attributes of the Data.
Audio Scene Descriptors The digital representation of a sound field for a defined region of Space and interval of Time.
Device Scene Geometry A Data Type including the Point of View of the Devices capturing media information, possibly grouped according to the characteristics of the Devices.
Listener The user experiencing the audio at the decoder side.
Sound field The spatial and temporal distribution of sound pressure in a defined physical region of space and interval of time.
Transport The function of making available Audio Objects from encoder to decoder.