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MP3Gain can adjust the volume in a completely lossless way by modifying the mp3 file directly, without decoding and re-encoding. This works with all mp3 players, i.e. no support for a special tag is required.
MP3Gain can also add replaygain compatible (APE) or ID3v2 gain tags to mp3 files.
On ReiserFS (as of kernel 2.4.26 and 2.6.7), writing to a temp file (-t option) seems to be a lot faster than modifying the original file directly. Therefore, -t is now the default in Debian. The original behaviour can be restored with -T.
Q: What dB value does mp3gain normalize to? How does this compare with normalize-audio? A: mp3gain and normalize-audio use different methods to determine the perceived volume of a file, so the numbers are not comparable. As I understand it, normalize-audio applies a smoothing filter and then sets the maximum to -12dBFS. mp3gain sorts the volume and then uses the value at 95% (i.e. 5% of the f more»
MP3GAIN(1) MP3GAIN(1) NAME mp3gain — lossless mp3 normalizer SYNOPSIS mp3gain [options] [infile] [infile 2 ...] DESCRIPTION This manual page documents briefly the mp3gain command. This manual page was written for the Debian distribution because the original program does not have a manual page. more»
mp3gain (1.5.1-4) unstable; urgency=low * Fix various potential segfaults found by cppcheck. * more»
This package was debianized by Stefan Fritsch <email@example.com> on Wed, 4 Feb 2004 21:33:28 +010 more»