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Topic: Replaygain Questions (Read 2046 times) previous topic - next topic
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Replaygain Questions

Hi,

I noticed that if you run an already replaygain'd file through replaygain again the result is a file with 0.01db increased volume (at least on the few files I've tried), e.g:

$ replaygain --list Roots\ Manuva\ -\ Witness\ \(1\ Hope\).mpc
Replaygain 0.84    © 2001-2002 Klemm/Robinson/Sawyer

  Level-  |      (Peak+)|
Adjustment|  Peak (Adjst)|  Filename
----------+--------------+-----------------------------------------------------
-7.89 dB | 38107 (15364)| Roots Manuva - Witness (1 Hope).mpc
----------+--------------+-----------------------------------------------------
          | 38107 (15364)| --- maximum (title based) ---

$ replaygain --auto Roots\ Manuva\ -\ Witness\ \(1\ Hope\).mpc
Replaygain 0.84    © 2001-2002 Klemm/Robinson/Sawyer

  Level Adjustment  |  Peak Level  (Adjst)|  Filename
----------------------+-----------------------+-------------------------------
-7.89 dB => -7.90 dB | 38107 => 38107 (15346)| Roots Manuva - Witness (1 Hope)
mpc
          => -7.90 dB |      => 38107 (15346)|

---

What's happening here (and why?). How come the peak level is the same if the Level Adjustment is different?

Also, whats the relevance of the K value given by the following command? I have it set to K14 as stated in the recommended settings - what would be the advantage of setting it to K16?

dave@dave1 /cygdrive/d/tmp
$ replaygain --listallreport Roots\ Manuva\ -\ Witness\ \(1\ Hope\).mpc
Replaygain 0.84    © 2001-2002 Klemm/Robinson/Sawyer

[snip]

Suggested mode for
  title based replay gain:  K-8
  album based replay gain:  K-8
  title based clipping prev: K-16
  album based clipping prev: K-16

cheers,
-dave

Replaygain Questions

Reply #1 –
Don't worry about it, it's a cosmetic bug. Your MPCs shouldn't have been altered... something like --listdb will still show the exact same values after the 2nd run.

edit: a simple search for "replaygain AND bug" spawned this thread: http://www.hydrogenaudio.org/forums/index....=ST&f=12&t=9568