What is Dolby metadata?

Updated 3 weeks ago by Logan Sturgeon

Scope

Metadata is additional control information that is carried along with the encoded audio program and provides essential information about the audio to a decoder. Metadata provides many important functions including dynamic range control for less-than-ideal listening environments, level matching between programs, down mixing information for the reproduction of multi-channel audio through fewer speaker channels, and other information. Metadata makes Dolby Digital and Dolby E a complete delivery system for audio, rather than just an audio compression system.


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