smst;133688 Wrote: 
> Could it be that the two utilities target two different normalisation
> volumes?....
Thanks but I think I figured it out. I am using the command line
version of mp3gain which first calculates the gain values and THEN
applies them to the data. During the application stage it writes an
extra tag called "mp3gain_undo" which contains the number of 1.5dB
steps it has adjusted the data by. The track gain field then contains
remaining adjustment needed for perfect normalisation (after the whole
number of 1.5dB step adjustments). Therefore, for the mp3 file, if I
do:

total gain = (mp3gain undo)*1.5 + track gain

then this almost exactly equals the value in the flac tag.

I haven't quite figured out what's happening with the album tags yet. I
presume that the application of the gain to the data itself (as done by
mp3gain) only applies to the track gain. The album gain is only stored
in the tags I presume....?

In any case, I figure I need to only calculate the tag values and not
do anything to the data itself. Presumably this can only be done via
the GUI version of mp3gain...?

Jimmy


-- 
jimmy
------------------------------------------------------------------------
jimmy's Profile: http://forums.slimdevices.com/member.php?userid=616
View this thread: http://forums.slimdevices.com/showthread.php?t=27036

_______________________________________________
ripping mailing list
[email protected]
http://lists.slimdevices.com/lists/listinfo/ripping

Reply via email to