SA60 size 3 MB  / 17 MB SA60 is a real time 1/3 octave spectrum analyser. Interface is modelled on classic DN60 spectrum analyser, originally developed in 1980. DISPLAY LEVELS — ...

 SpectralDiff size 20 MB  / 16 MB SpectralDiff detects if two audio files are identical or slightly different. For this purpose, it computes and displays as spectrum the difference between ...