Hydrogenaudio Forums > Using MP3Gain messes tags?

Full Version: Using MP3Gain messes tags?

Hydrogenaudio Forums > Lossy Audio Compression > MP3 > MP3 - General

PlazzTT

Jan 31 2004, 19:24

Hi,

I've applied album gain mode using MP3Gain to lots of my MP3 files.

Now Tag reports them as having APE2.0 tags, although they didn't before.

And fb2k won't read any of the tags. (Probably because it thinks there's APE2.0 tags, and so doesnt bother looking at the ID3v1 info.)

This is from the properties page from fb2k:

QUOTE

enc_delay = 576
enc_padding = 1200
mp3_accurate_length = yes
bitrate = 192
codec = MP3
channels = 2
samplerate = 44100
mp3_stereo_mode = joint stereo
mp3gain_minmax = 000,204
mp3gain_album_minmax = 000,204
mp3gain_undo = +006,+006,N
replaygain_track_gain = +0.320000 dB
replaygain_track_peak = 0.437095
replaygain_album_gain = -0.060000 dB
replaygain_album_peak = 0.437095
----------
17016720 samples @ 44100Hz
File size: 9 263 554 bytes

How can I repair these MP3s, so that fb2k can read the tags?

Thanks.

Jebus

Jan 31 2004, 20:10

The post-1.0 versions of mp3gain save the undo information in an APE tag. you can turn off that option from within mp3gain.

God i wish they would implement it as an id3v2 option as well - most of us out there using mp3 do it for compatibility with hardware players (otherwise i'd use MPC), and damnit APE IS NOT COMPATIBLE WITH ANYTHING.

indybrett

Jan 31 2004, 22:15

Foobar2000 is able to add ReplayGain info using Ape tags, without blowing away the ID3 tags. I don't understand why MP3Gain can't do this. Maybe it can, and I just haven't figured it out.

westgroveg

Jan 31 2004, 22:36

QUOTE

How can I repair these MP3s, so that fb2k can read the tags?

Remove tags, re-tag files then you can can mp3gain the files.

First tag then MP3gain.

AtaqueEG

Jan 31 2004, 22:43

QUOTE(PlazzTT @ Jan 31 2004, 07:24 PM)

And fb2k won't read any of the tags. (Probably because it thinks there's APE2.0 tags, and so doesnt bother looking at the ID3v1 info.)

foobar just stops reading tags whenever it finds a valid set of tags.
MP3Gain sometimes puts the APE2 tag "in front" of the Id3 Tag.

Do what westgroveg suggested, should do the trick.

Or disable "undo" in MP3Gain, altough it will forbid you from restoring your tracks to their original volume (you can still do it, if you keep the log that MP3Gain produces).

Smiff

Feb 1 2004, 00:51

QUOTE(Jebus @ Jan 31 2004, 06:10 PM)

good post.

although, i won't even use Id3v2, for compatibility.. it's v1.1 only for me

i never understood the point of mp3gain's undo anyway... you want it to not clip, aiight. edit: i just realised: if you applied a track gain, you might want to undo. i always album gain (constant gain across all songs in an album).

RyanVM

Feb 1 2004, 21:04

Are there any programs to remove APEv2 tags from songs in a directory? I've got a bunch which have this problem, but they're amongst many that don't in my collection of almost 5000 songs. It would be nice to just load up the files and let it strip any APEv2 tags overnight.

CiTay

Feb 2 2004, 10:36

QUOTE(RyanVM @ Feb 2 2004, 04:04 AM)

Case's Tag can do that. It won't even take a night to do it. Remember, APEv2 tags are at the end of the file. You'll be very surprised how fast you can remove them.

RyanVM

Feb 4 2004, 16:01

As far as I can tell, Tag can only remove ID3v2 tags. Unless I'm missing something...

I also tried MP3Tag, but that ended up removing ALL my tags (ID3v1, ID3v2, and APEv2) even though I told it in the settings to only remove APE tags. Go figure (and good thing I had a full backup of my collection - otherwise there goes 4700 tags

ancl

Feb 4 2004, 16:19

QUOTE(RyanVM @ Feb 4 2004, 11:01 PM)

As far as I can tell, Tag can only remove ID3v2 tags. Unless I'm missing something...

If you force tag to write one type of tag, all others will be removed. You can't force it to write ID3v2 (since it can't write those), but if you use "Tag --force id3v1 <filename>" all tags except ID3v1 and ID3v2 will be removed.

Florian

Feb 4 2004, 16:19

QUOTE(RyanVM @ Feb 5 2004, 12:01 AM)

I also tried MP3Tag, but that ended up removing ALL my tags (ID3v1, ID3v2, and APEv2) even though I told it in the settings to only remove APE tags. Go figure (and good thing I had a full backup of my collection - otherwise there goes 4700 tags

Please don't spread BS - Mp3tag only removes the tags according to the options at Options, Tags, Mpeg from MP3s. If you think that you've found a bug, please talk back at the Mp3tag Forums.

Best regards,
~ Florian

RyanVM

Feb 4 2004, 20:10

I didn't realize I was spreading BS. Try not jumping to conclusions and flaming me when I was honestly sharing my experience.

Thanks for the advice, though. It turns out I was looking in the wrong spot of the options - I changed them in Ape, Mpc accidentally. My bad. Now that was certainly easier than yelling at me.

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