dr_meter is dynamic range meter. In short, it measures how much does the amplitude of music change. dr_meter is attempt to create open-source, non-GUI, format-agnostic and OS-agnostic dynamic range meter, whose results will be compatible with TT DR Offline Meter's. What can I do with it? Read the LICENSE. How to use it? $ make $ ./dr_meter /your/favourite/music.flac What formats does it support? Every audio format ever. Or at least the ones supported by ffmpeg. Why to use it? To fight overcompression. Interesting links about loudness wars: * http://en.wikipedia.org/wiki/Loudness_war * http://turnmeup.org/ * http://justiceforaudio.org/ * http://www.pleasurizemusic.com/ * http://dr.loudness-war.info/