What is “vorbisgain” Package?

Add Replay Gain volume tags to Ogg Vorbis files
For more details: https://sjeng.org/vorbisgain.html

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install vorbisgain.

  brew install vorbisgain

Now, use vorbisgain!