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ANSI/CTA-2075-2020
Loudness for TVs & Online Video Distribution for Mobile/Fixed Devices
This standard applies to devices, whether mobile or fixed, that receive OTT and OVD services and create audio output either through a built-in loudspeaker or through an interface to an external transducer or another A/V device. It describes the management of loudness and dynamic range within a device, with or without the use of metadata, to optimize the listener experience considering: 1. the available resources of the device to achieve appropriate SPL, 2. environmental or physical conditions that affect the way a given loudness level and dynamic range are experienced, 3. user preferences that change the required loudness and dynamic range.
American National Standards Institute [ansi]