AAC Gain

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 reversable. It supports AAC (mp4/m4a/QuickTime) audio files in addition to mp3 files.

AACGain uses the same command-line user interface as mp3gain.

Installation

Arch > Manjaro > etc.

pamac build aacgain-cvs

Debian > Ubuntu > etc.

http://deb-multimedia.org/pool/main/a/aacgain/aacgain_1.9-dmo4_amd64.deb

Usage

aacgain [options] <infile> [<infile> ...]

Use -? or -h for a full list of options