UltimaSound II for Windows

UltimaSound is a PC-based audio, meaning speech and music, spectrogram software. All you need is your PC and a microphone and you can see a vivid picture from the output of your voice or music instruments in 3D waterfall frequency domain, in real time. This utility can be used for science fair and teaching in middle/high school to better understand the elements of sound/voice/music: frequency, amplitude, pattern, spectrum.