Spectrograms are 'vocal fingerprints' of a person. Audio recordings of voices appear in form of hand-drawn spectrograms on the walls of a room in ultraviolet light.
Thus, the room turns into an archive for voices. Only under certain conditions and by use of a sonification technique the spoken words encoded in the spectrographic drawings are released again.
2010
UV-color, web-cam, sound
Sonification (Inverse FFT)