Projects / Normalize


Normalize is a tool for adjusting the volume of audio files to a standard volume level. This is useful for things like creating mix CDs and MP3 databases, where different recording levels on different albums can cause the volume to vary greatly from song to song.


RSS Recent releases

  •  08 Sep 2002 19:48

Release Notes: This release fixes a bug causing corrupt ID3 tags. Some updates have also been made to the normalize-mp3 script.

  •  26 Aug 2002 07:25

Release Notes: This release fixes some bugs in the normalize-mp3 script, and some problems reading MP3s with bad CRCs.

  •  24 May 2002 09:02

Release Notes: This release fixes several bugs in the ID3 tag handling code.

  •  08 Apr 2002 04:52

Release Notes: This release fixes a bug causing a segmentation fault on certain rare MP3 files, and includes a couple of other minor bugfixes.

  •  24 Feb 2002 02:07

Release Notes: A bug that caused "normalize -bn" to display the wrong volume adjustment was fixed.

RSS Recent comments

23 May 2001 09:04 drichard1 Thumbs up

Really Useful!
I use Normalize to "normalize" MP3's from various sources. I write out the MP3 to a WAV, run Normalize, and then re-encode using a VBR format with Xing (or pick your fav. encoder). Have fixed a number of muted files that way. Would love to see a project that can front-end this process! Keep it going!

24 Feb 2001 06:26 jonik Thumbs up

Great work
This is such a great program, especially the batch
mode. When processing a whole album, you can
adjust the volume of the songs while still
preserving their relative levels, which is excellent.

Much better than any Windows normalizer I've used :)

30 Oct 2000 06:22 karellen

Very useful app. I've been looking for such stuff for a while now because
the MP3's I used to burn audio CD's didn't have the same volume
levels and I constantly had to adjust the volume knob. Now
all those problems are gone since I normalize all the MP3's
used to burn a certain audio CD. Thank you for this nice app.

30 Jan 2001 19:27 wadearnold

This is one of the easist applications for making audio cd's sound like they were mastered. It is impossible for a 'mix' CD to have the same levels. Thanks for making such an easy to use application that does a perfect job! Thanks for making it free too!!


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