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MP3Gain - Any reason to Album Gain higher than 83dB?
BFG
post Nov 12 2012, 05:01
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I'm planning to apply replaygain MP3Gain (album) to my entire set of ripped CDs. I know that the default setting for MP3Gain is 89dB, which gives around 14dB of headroom. But I've read up on some industry standards - notably, SMPTE RP 200:2002 and EBU R128 - which recommend 83dB and 80dB respectively. Furthermore, I tend not to listen to music at very high volumes - typically I never go over about 40% of max - and the Replaygain MP3Gain analysis shows I would have to go down to 82dB or lower to avoid all clipping.

So, is there any reason NOT to go down to 83dB or 80dB? Am I reducing the dynamic range of the music by doing so (i.e. could I be causing some sections of the music to have a 0dB volume)?

And, an associated question - what does a blue track with ??? for clipping indicate in ReplayGain MP3Gain? I can't find any documentation on this.

This post has been edited by greynol: Nov 13 2012, 01:07
Reason for edit: replaygain -> mp3gain
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Dynamic
post Nov 15 2012, 17:51
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From MP3Gain Help/MP3Gain Interface/Menus/File List:

QUOTE
If there is a ??? in the clipping column for a file, then the mp3 probably has some bad data in it. This bad data could have been caused by a download error, a poor job of splicing two mp3s into one, or other factors. Listen closely to the mp3, and somewhere you'll probably be able to hear a loud click, pop, “chk”, or other sound. Because of this bad data, the program cannot accurately determine the maximum amplitude, because the bad data is causing extreme clipping.
Fortunately, in most cases the amount of bad data is small enough that it does not affect the calculation of the overall volume of the file. The suggested Track and Album gains are probably still valid.
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BFG
post Nov 15 2012, 18:22
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QUOTE (Dynamic @ Nov 15 2012, 10:51) *
From MP3Gain Help/MP3Gain Interface/Menus/File List:

How the heck did I miss that? Thanks.

Interestingly, it's only happening on tracks that were ripped directly from CD using EAC. And EAC didn't report any problems on those tracks.

This post has been edited by BFG: Nov 15 2012, 18:24
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