Replay Gain volume normalization Python tools

 This package contains the replaygain and collectiongain tools, which use
 the rgain3 Python package to apply volume normalization metadata to
 individual tracks, albums, or an entire collection of music.
 Media players that support Replay Gain will use this information to
 adjust the volume during playback, so that all tracks sound equally loud.
 .
 Replay Gain is a proposed standard designed to solve the problem of
 varying volumes across audio files. For more information see
 <https://wiki.hydrogenaud.io/index.php?title=ReplayGain>.