I read and listened to Ian Shepherd's piece here discussing the apparent new iTunes ability to do both track and album gain leveling.
I just did a test rip in the latest iTunes and note that is still just creates a single iTunNORM tag field. I used axone.jar and did not see any new tag fields or header changes. So a few questions:
- How does iTunes do both album and track volume leveling with just a single tag field?
- If the content of the single iTunNORM tag field has been altered to contain both track and album gain info, does the function $rg2sc need to be tweaked to accommodate?
- Without any changes to $rg2sc, does its output still work as before (reflecting either track or album gain depending which RG value is used), or is this essentially broken with the latest versions of iTunes?
I don't have the tools to quantitatively evaluate what iTunes is doing or how it does what it does, so any insight appreciated.