I tagged my collection with mp3gain grouped as albums and it appears to have worked; using a program like Banshee I get consistent volume levels between my two test tracks (which are from different albums).
But when I try them on SC I definitely do not get the same effect. I have "Volume Adjustment" in the Player Settings set to "Smart Gain", but I've also tried it with "Track Gain" and no luck there either. Is there anything else I need to set?
Additionally, is there anywhere that replay gain activity by SC is logged so I can see whats going on?
Thanks!
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Thread: replaygain not working?
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2009-02-16, 14:12 #1Member
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- Aug 2008
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replaygain not working?
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2009-02-21, 15:44 #2Junior Member
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- Nov 2008
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I just set this up. I haven't really tested it out. When I do I'll let you know. Maybe you need to rescan the library. Make sure to do a full scan not just by data time
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2009-02-22, 10:47 #3
You have to be careful with mp3gain. For use with the squeezebox you should only run the analysis and not let mp3gain adjust the actual audio data.
Analysis only computes the necessary gain adjustment values and writes them as APE tags.
If you have mp3gain set to adjust the audio data it will also write the tags.
If you play these files on the SB and have replay gain enabled the already adjusted files will get adjusted again based on the tag values.
Make sure you don't run mp3gain with any of these switches -r, -a, -g, -l
If you 're sure you only did the analysis with mp3gain you should check the replay gain values in SC (song info). The gain values must be listed there.
If they aren't you should do a full rescan like Mapes suggested.
-s.
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2009-02-24, 15:57 #4Member
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- Aug 2008
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i ran it with -a, that must be why. thanks!
for flac files do you know if
metaflac --add-replay-gain
will add tags or actually change the file?
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edit:
another question; So the problem with changing the audio is that the replaygain gets applied twice. Hence if I turn off replaygain on SC, it only gets applied once and I tested this and things work fine. Is there a compelling reason for me to undo all of the replaygain adjustments in my collection and go back through and just have the tags applied? I suppose this would be necessary to take advantage of the smartgain feature of SC?Last edited by evencoil; 2009-02-24 at 16:06.
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2009-02-24, 16:35 #5
It will only write the tag fields, it won't change change the audio data.
Try to run mp3gain with the undo switch. Check the tags to see if the replay gain metadata persists.
The problem with mp3gain is that you can only undo the changes as long as the undo fields in the APE tag exist. If you delete them by chance you can't go back to the original.
Also you can only either apply album gain or track gain, not both.
If you want to take advantage of smart gain then you should undo the audio changes and do the analysis again if necessary.
-s.
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2009-02-24, 17:19 #6Member
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- Aug 2008
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- 56
thanks again.
it looks like using the -u switch for mp3gain does NOT delete the tag (precisely what I want).

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