As someone mentioned here, Replay Gain is a feature that must be enabled (in the metadata) in order for it to work.
If a person is ripping a CD, software like dbPoweramp allows you to enable Replay Gain.
There are also software programs (like MP3TAG) that allow you to enable that feature.
Roon comes with a volume leveling feature that allows users to pick a preferred base volume to listen to all tracks. That feature works with your own music and music streamed through Roon from whatever source (Qobuz, Tidal). This is useful when listening to playlists with tracks recorded at different volumes. Some people like this feature; others do not bother with it.
If a person is ripping a CD, software like dbPoweramp allows you to enable Replay Gain.
There are also software programs (like MP3TAG) that allow you to enable that feature.
Roon comes with a volume leveling feature that allows users to pick a preferred base volume to listen to all tracks. That feature works with your own music and music streamed through Roon from whatever source (Qobuz, Tidal). This is useful when listening to playlists with tracks recorded at different volumes. Some people like this feature; others do not bother with it.