Zoog is a Rust library that consists of functionality that can be used to determine the loudness of an Ogg Opus file and also to rewrite that file with new internal gain information as well as loudness-related comment tags. It also has functionality for purely manipulating comment tags of both Ogg Opus and Ogg Vorbis files.
Zoog currently contains two tools,
opusgainandzoogcomment.opusgaincan be used to:
- set the output gain value located in the Opus binary header inside Opus files so that the file plays at the loudness of the original encoded audio, or of that consistent with the ReplayGain or EBU R 128 standards.
- write the Opus comment tags used by some music players to decide what volume to play an Opus-encoded audio file at.
It is intended to solve the “Opus plays too quietly” problem.
github.com/FrancisRussell/Zoog
hydrogenaud.io/index.php/topic,120387.0
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