Can I get some clarification about “ ReplayGain - Album Gain, Tack Gain, Album Peak, Track Peak” etc?
When I use PICARD to gather and clean the Metadata, I notice that sometimes the above TAGS are present. (not always)
When and by who, are these values entered? The Mastering Engineer? PICARD?
Does Audirvana read these TAGS and perform these changes?
For example; I see some CD’s with a “ReplayGain Album Gain” of -8.36 dB. Why would I want the music to be automatically turned down by -8.36 dB? Was there a mistake made during the Mastering process for someone to be adding this?
The only MASTERING process I’ve been involved in was back in the Vinyl days, so this is all new to me. As an engineer, I would mix the album to have consistent levels across tracks.
While listening to Audirvana in “shuffle” mode, I use the “Volume Levelling” option built into Audirvana to keep the volume across tracks from different albums close to the same level.
In PICARD I also see the tags “dynamic range (dr), dynamic range (r128). What is the difference between these two? Is PICARD analyzing the Dynamic Range like Audirvana is doing or is this TAG being entered by a human? Hopefully this TAG doesn’t trigger a LIMITING by the player.
Thanks in advance for the education.

