ReplayGain tags of some M4A files not recognized [#8784]
Posted: Tue Nov 29, 2011 11:40 pm
Since the upgrade to MM4, I've found that M4A files that have been ReplayGain leveled via another program (such as foobar2000) do not have their leveling data read until they've been volume analyzed again in MM4.
My usual workflow is to rip from CD to a lossless format, then from that, create a M4A or MP3 version for use on devices where space is limited. For this second step, I usually use foobar2000 and the Nero encoder for M4A files. Tracks are always ReplayGained after conversion.
I first noticed this when certain newer tracks were always playing at a blaring volume compared to surrounding tracks in a playlist. Further inspection revealed that all affected tracks were M4A converts. Checking properties in MM4, I found that there were apparently no leveling data. I then checked the files in MP3Tag and Winamp and both reported that the data were present. Running volume analysis on the files results in the leveling data now being present in MM4 properties, but I can find no difference in the tags before and after.
Files with volume normalization via the ITunNORM tag seem to be recognized, though. Also, ReplayGain tags in M4A files were recognized in MM3.
My usual workflow is to rip from CD to a lossless format, then from that, create a M4A or MP3 version for use on devices where space is limited. For this second step, I usually use foobar2000 and the Nero encoder for M4A files. Tracks are always ReplayGained after conversion.
I first noticed this when certain newer tracks were always playing at a blaring volume compared to surrounding tracks in a playlist. Further inspection revealed that all affected tracks were M4A converts. Checking properties in MM4, I found that there were apparently no leveling data. I then checked the files in MP3Tag and Winamp and both reported that the data were present. Running volume analysis on the files results in the leveling data now being present in MM4 properties, but I can find no difference in the tags before and after.
Files with volume normalization via the ITunNORM tag seem to be recognized, though. Also, ReplayGain tags in M4A files were recognized in MM3.