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FLAC file tags modified

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SBass:

--- Quote from: Awesome Donkey on October 04, 2024, 05:15:05 pm ---
If you have audio analysis enabled in the auto-import options it will write metadata like R128 data for volume leveling and data for the waveform seekbar to the actual files.

--- End quote ---

Yes, I had that option enabled at first, later disabled due to long analysis time. It was my suspicion too. Need to do in depth comparison about the changes made and elaborate here later. However a quick comparison revealed what I mentioned earlier: added embedded album cover, added additional tags like audio CRC, volume data and others. Noticed changed tags order as well. I will reiterate myself I appreciate additional data jriver provides but it should not modify original files, instead could store such data in dedicated database outside music folders.

HPBEME:

--- Quote from: SBass on October 05, 2024, 06:05:09 am ---I will reiterate myself I appreciate additional data jriver provides but it should not modify original files, instead could store such data in dedicated database outside music folders.

--- End quote ---
That is actually what MC does… Stores all the metadata in a dedicated database.  Anytime you see someone mention "MC Library", that is what they are referencing - the database.  Unless you manually pointed to a unique location during install, you should be able to find all the library fields here (for Windows anyway):
C:\Users\username\AppData\Roaming\J River\Media Center 33\Library

It is also possible to prevent library fields from being written to tags (including embedding of cover art) per the steps in the picture below.  Unfortunately, in the last step you have to uncheck the box one library field at a time, so that part is a bit tedious.  I am pretty sure some tags get written no matter what that you may not be happy with, but others more knowledgeable/qualified than me can elaborate further about that I'm sure.

SBass:
The following tags existed in original file:
Album
Albumartist
Artist
Comment
Composer
Disctotal
Genre
Performer
Title
Track
Tracktotal
Year

These have been added:
Album artist
Audio CRC
BPM
Dynamic range (DR)
Dynamic range (R128)
Peak level (R128)
Peak level (sample)
Replaygain_track_gain
Replaygain_track_peak
Tool name
Tool version
Track transition duration
Volume level (r128)
Volume level (replaygain)
Waveform

I removed embedded cover art, all additional tags with mp3tag app and file size has not changed to original size. Then I used winmerge to find and remove differences between original and modified files. There was just one modified line found, reported as line 7. After removing the excessive data from the line, files report the same now.

It was just 1 file investigation so far and I'll try to find out if the same exact amount of data can be adjusted to the rest of the files in the folder. If yes then would be able to repair the files manually in one folder.

JimH:
I'm going to end this discussion if you're downloading files from the Internet.  I also can't find a license for you.  I'm jimh at jriver if you'd like to explain.

Awesome Donkey:

--- Quote from: SBass on October 06, 2024, 09:23:23 am ---These have been added:
Album artist
Audio CRC
BPM
Dynamic range (DR)
Dynamic range (R128)
Peak level (R128)
Peak level (sample)
Replaygain_track_gain
Replaygain_track_peak
Tool name
Tool version
Track transition duration
Volume level (r128)
Volume level (replaygain)
Waveform
--- End quote ---

Nearly all of these tags and the data for each are added when the audio analysis feature is enabled. Tool name and version are from the option in MC's Options > Audio > Advanced section. Well, Album Artist may be a special case though since, as far as I know, there's two different tags for that. Regardless, the Media Center app is actually functioning as intended for the majority of use cases since the majority of users in these cases prefer the metadata to be written directly to the files themselves (as opposed to the prospect of losing a database without backup could cause a loss of all this data and require it to be ran again which can be very time consuming). I'm afraid you're in a minority here with a special use case where you don't want the information to be written to the files (which is not recommended but to each their own).

Easiest way to prevent this would be to disable the audio analysis feature.

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