: The original version is completely free and open-source. It uses statistical analysis to determine how loud the file actually sounds to the human ear and adjusts it without losing quality.
: A highly customizable media player that supports ReplayGain, which adjusts volume during playback without altering the original files. : The original version is completely free and open-source
: A powerful, open-source audio editor that includes "Loudness Normalization" features to balance your tracks safely. : The original version is completely free and open-source