REPLAYGAIN_TRACK_PEAK and Clipping prevention (4.0.6)

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Expand view Topic review: REPLAYGAIN_TRACK_PEAK and Clipping prevention (4.0.6)

Re: REPLAYGAIN_TRACK_PEAK and Clipping prevention (4.0.6)

by Aff » Sat Sep 22, 2012 11:25 am

Thanks for your suggestion. There are several limitations with MP3Gain:
  • Only for MP3 files! What about e.g. FLAC?
  • MP3Gain adds an APE tag to store the gain instead of the common ID3 tag. Players and taggers can get confused - it's messy. MM isn't able to read it.
  • MP3Gain leveling changes the MP3 frames. This is good for players that don't support ReplayGain and it is reversible. But it is unnecessary for players supporting ReplayGain.
    As MM doesn't recognize the APE tag, it would apply it's own analysis above of it (shouldn't change anything really if both are set to 89dB).

Re: REPLAYGAIN_TRACK_PEAK and Clipping prevention (4.0.6)

by Gaeta » Sat Sep 22, 2012 9:56 am

For what it's worth, MM is an excellent program, but I think sometime is tries to do too much & all the features tend to make it unstable (at times). Volume leveling is an example. Whilst highly desirable so I do it on all my tracks, however I use a program specifically for that purpose because it something that only needs to be done once. I use mp3gain (link below). I just point it at the folders I want leveled, it loads the tracks (including sub-folders), levels all to the decibel setting I specify and optionally (via a options setting) saving leveling information in the file tag (in which case it does not re-level that track again - unless you force it to). Leveled tracks play fine in MM, Winamp & WMP).

From what I have read, several players use this program as their volume leveling engine; I think MM may be one. A big advantage of MP3Gain over MM is that leveling in MP#Gain is completely reversible without any loss in quality. In this context, reversible means you can set tracks to a different db and yes I have done that. That was in early days of using it when I tried different db settings, before settling (finally on 89). I now have over 20,000 tracks leveled this way and MM likes them all.

Of curse, if MM is going to have a feature, it should work correctly so the problem reported needs to be traced and fixed. But, if MM is being silly for you, then this an option that works.

http://mp3gain.sourceforge.net/

REPLAYGAIN_TRACK_PEAK and Clipping prevention (4.0.6)

by Aff » Sat Sep 22, 2012 8:08 am

  1. When automatically analyzing volume, REPLAYGAIN_TRACK_PEAK is not set.
  2. "Clipping prevention" doesn't work if there is no REPLAYGAIN_TRACK_PEAK
See http://www.mediamonkey.com/forum/viewto ... 15#p347892
Maybe related with http://www.mediamonkey.com/forum/viewto ... 19&t=64262?

Edit:
Seems to depend on the MP3 file somehow, but I can't figure out on what exactly. Please test with Amazon.com Song ID 202033915 as suggested in the first link, although I couldn't find anything really special with it.

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