如何使用mp3gain编写带有相册增益的重放增益标记？

Question

我安装了mp3gain并查看了手册，似乎不可能在使用相册标记的同时编写重放标记。但也许我漏掉了什么。

mp3gain optionally writes gain adjustments directly into the encoded data.
In  this  case, the  adjustment works with all mp3 players, i.e. no support for a special tag is required.
This mode is activated by any of the options -r, -a, -g, or -l.

   If none of the above options are given, the recommended gain change is instead written  to
   a  special  tag  in the mp3 file. In this case, the adjustment only works with mp3 players
   that support this tag.  Some mp3 players refer to this as ReplayGain.  The tag is  written
   either  in  APEv2  format  (default)  or in ID3v2 format (with -s i).  If you only want to
   print the recommended gain change (and not modify the file at all) you may use  the  -s  s
   (skip tag) option.

使用-a激活相册标记

你能帮忙吗？谢谢

Answer 1

选项-a of mp3gain并不意味着“激活相册标签”(不管该做什么)。看看man mp3gain：

-a 自动应用相册增益(文件都来自同一相册:对所有文件都进行了一次增益更改，因此它们的相对响度保持不变，但平均相册响度已正常化)

换句话说，-a使它为它处理的所有文件计算一个和相同的增益，以统一的方式修改它们的增益。其想法是，所有这些文件来自同一个相册，因此在增益修改后应该具有相同的相对响度，但您也可以将此选项用于来自不同相册的文件(或与相册无关的文件)。这和专辑的标签没有任何关系。