wxMP3gain!

Graphical User Interface (GUI) for MP3Gain, VorbisGain and AACGain (enables you to modify the loudness level of mp3, ogg, and mp4 files) / Frontend for MP3Gain.

iVolume calculates the volume perceived by the human ear for each song of your iTunes music collection. Thereby it gets the most out of the approved Replay Gain algorithm and adjusts your songs accordingly.

MP3 Normalizer improves the quality of MP3 files. It amplifies too quiet audio or decreases the volume of too loud files or their parts automatically. It also smoothes sound peaks and clicks in MP3 tracks. MP3 Normalizer can make voice records more hearable with the Special processing of voice feature.

Graphical user interface front end supporting MP3Gain engine which analyzes and losslessly adjusts mp3 files to a specified target volume. A complete re-creation (made in QT4) of the original MP3Gain GUI, however it can be run on more platforms.

QtGain is a simply frontend for MP3Gain, VorbisGain, AACGain and Metaflac which analyses and adjusts your media files so that they have the same volume without the need to reencode the files.

Droidgain - A rather crude, but functional, port of MP3Gain to Android

AACGain is a modification to Glen Sawyer's excellent mp3gain program. It supports AAC (mp4/m4a/QuickTime) audio files in addtion to mp3 files. AACGain normalizes the volume of digital music files using the Replay Gain algorithm. It works by modifying the global_gain fields in the mp4 samples. Free-form metadata tags are added to the file to save undo information, making the normalization process reversible.AACGain uses the same command-line user interface as mp3gain.AACGain also integrates with iTunes using my iGain GUI.Windows download file is here: http://altosdesign.com/iGain/ »

MP3Gain Express is a basic port of MP3Gain to Mac OS X. It allows you to analyze or apply track gain to a list of MP3 files. Anyone who has used the Windows UI for MP3Gain should find this one familiar, as it was designed to look similar to that version.