--- title: "What is Dolby metadata?" slug: "what-is-dolby-metadata" updated: 2024-12-19T11:29:40Z published: 2024-12-19T11:29:40Z canonical: "docs.telosalliance.com/what-is-dolby-metadata" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt > Use this file to discover all available pages before exploring further. # What is Dolby metadata? ## 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. ## Let us know how we can help If you have further questions on this topic or have ideas about improving this document, please [contact us](https://www.telosalliance.com/support-request).