r128gain 0.4.0

Fast audio loudness scanner & tagger

Fast audio loudness scanner & tagger

r128gain is a multi platform command line tool to scan your audio files and tag them with loudness metadata (ReplayGain v2 or Opus R128 gain format), to allow playback of several tracks or albums at a similar loudness level.

This is beta software, please test and report bugs.

Features

• Supports all common audio file formats (MP3, AAC, Vorbis, Opus, FLAC, WavPack…) and tag formats (ID3, Vorbis comments, MP4, APEv2…)

• Writes tags compatible with music players reading track/album gain metadata

• Supports new R128_XXX_GAIN tag format for Opus files (very few scanners write this tag, athough it is defined in the Opus standard)

• Uses threading to optimally use processor cores resulting in very fast processing

Installation

r128gain requires Python >= 3.4 and FFmpeg >= 2.8.

From PyPI (with PIP)

Install r128gain using pip: pip3 install r128gain

From source

1. If you don’t already have it, install setuptools for Python 3

2. Clone this repository: git clone https://github.com/desbma/r128gain

3. Install r128gain: python3 setup.py install

Command line usage

Run r128gain -h to get full command line reference.

Examples

• Scan all MP3 files in music_directory: r128gain music_directory/*

License

LGPLv2