Fast Fourier transform spectrum analyzer. Stereo, mid-side, surround spectrum analyzer. Stereo correlation meter. Multi-track spectrum comparison. PNG spectrum snapshot saving. K level meter. This plug-in is compatible with Windows (32 and 64-bit Windows XP, Vista, 7 and later versions) and Mac OS X (10.5 and later versions, 32-and 64-bit, Intel processor-based) computers.