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I have a given set of MP3 audio files of varying audio levels. I would like to know how I can automatically normalize all of these files, so the volume is amplified/raised on the quieter files, and lowered/muted on the louder files.
How can I go about accomplishing this?
Dave
Posted 2009-07-23T16:05:39.583
Reputation: 163
Vincent Van Den Berghe
Posted 2009-07-23T16:05:39.583
Reputation: 294
2Will Audacity do batch jobs? – mandroid – 2009-07-23T17:48:15.213
See This answer for info on how to actually use Audacity to normalize them.
– Ƭᴇcʜιᴇ007 – 2016-04-22T15:50:35.8237audacity is rather cumbersome for the above stated tasks... I could not recommend it for this job. It works wonders for a myriad of other tasks however. – ericslaw – 2009-08-01T21:08:32.703
MP3Gain, as suggested below, can do batch operations, iirc. – whiterook6 – 2014-01-06T17:25:42.643
The Audacity documentation is at: http://audacity.sourceforge.net/help/documentation
– M. Dudley – 2009-07-23T16:11:57.29322
MP3Gain does not just do peak normalization, as many normalizers do. Instead, it does some statistical analysis to determine how loud the file actually sounds to the human ear. Also, the changes MP3Gain makes are completely lossless. There is no quality lost in the change because the program adjusts the mp3 file directly, without decoding and re-encoding.
Though I think Audacity is more reknown
Ivo Flipse
Posted 2009-07-23T16:05:39.583
Reputation: 24 054
MP3Gain is great for this use, but I have to add that changes made by it are NOT all the time loseless. Depending on the change in dB you are asking for, there is a loss, the program warns you about it (that's when the gain number displays in red). – Gnoupi – 2009-08-09T16:13:25.763
2
Audiograbber will normalize the volume level of audio. It does a nice job of it:
Audiograbber is a beautiful piece of software that grabs digital audio from cd's. Audiograbber can automatically normalize the music, delete silence from the start and/or end of tracks, and encode them to a variety of formats including MP3. Audiograbber can download and upload disc info from freedb, an Internet compact disc database. You can even record your vinyl LP's or cassette tapes with Audiograbber and make wav's or MP3's of them.
Axxmasterr
Posted 2009-07-23T16:05:39.583
Reputation: 7 584
0
On Windows, I do it within my music player, foobar2000.
pgs
Posted 2009-07-23T16:05:39.583
Reputation: 3 153
0
If a command line utility is ok, I'd definitely recommend normalize.
I especially appreciate the batch mode with which you can normalise an album while preserving the relative volume levels of the tracks.
Jonik
Posted 2009-07-23T16:05:39.583
Reputation: 5 352
0
mediamonkey will set replay-gain idv3 fields of your mp3 files quite nicely.
highlight the file(s) and right-click [Analyze Volume] to set the replay-gain fields.
I think it can do it automatically as well (config option someplace)
lifehacker also has a discussion about this:
http://lifehacker.com/software/mp3/ask-the-readers-best-method-of-mp3-volume-leveling-225651.php#comments
ericslaw
Posted 2009-07-23T16:05:39.583
Reputation: 588
What operating system? – M. Dudley – 2009-07-23T16:12:15.750