Doing some routine file maintenance here today as I prepare for the v14 upgrade and noticed a real eye-opener.
I installed v14, created a new library location and adjusted the Auto import parameters including M:\Music as the sole "Auto Import" target and made sure to set "Analyze Audio" under Options. Then I clicked Run Auto Import to see what v14 would see.
I was stunned to see that only about 7200 of the 9000 tracks had "stored" audio analysis values (Replay Gain) while the other 1800 had to be "re-analyzed". When that was finally complete - I did some digging around and looked specifically at a few albums that I imported within the last week. These are all FLAC format BTW. And when I peered into the actual FLAC details on some of the very newest tracks - I see no Replay Gain data store within the tag. Conversely - I looked at an album that I pulled in 6 months ago and the Replay Gain data is clearly embedded right in the tag.
Then I decided to right click on one of these files with no hard replay gain tag and chose Library Tools->Analyze Audio. Of course MC shows a "replay gain" value in the dialog. So I unchecked the box that says "Skip analyzed files" and ran the audio analysis again to have it recalculate and rewrite the value. Then after checking the FLAC tag again - I could now see the tag data written right to the tag.
So - my first question - when MC does Analyze Audio from the Auto-Import settings when scanning an import location - does it simply write the audio analysis (replay-gain data) only to the library - and not the file tag itself? If so - why not?
And I assume the "Update Tags (From Library) process - would take stored audio analysis (replay gain) date from the library and write it to the file tags? I tested - and this seems to be the case.
Cheers!
VP