Before revision: Open sourcefoobar2000 (audio player) Windows 1.6.1 Peter PawłowskiQMPlay2 (media player) Windows, macOS, Linux It has VU meters and a spectrum analyzer Open source Servers Product Technology | class="wikitable sortable"|-!
After revision: Open sourcefoobar2000 (audio player) Windows 1.6.1 Peter PawłowskiQMPlay2 (media player) Windows, macOS, Linux It has VU meters and a spectrum analyzer Open source Servers | class="wikitable sortable"|-!