foo_vis_spectrum_analyzer is a foobar2000 component that implements a spectrum analyzer panel. It is an attempt to recreate the foo_musical_spectrum component by fismineur for foobar2000 64-bit.

hydrogenaudio.org/index.php/topic,125031.0
www.foobar2000.org/components/view/foo_vis_spectrum_analyzer
github.com/stuerp/foo_vis_spectrum_analyzer