During the presentation of the device, which took place in 1841 at the Third Meeting of Italian Scientists, during which the device was donated to the department, Professor Giovanni Alessandro Majocchi praised Cagnazzi for his invention, as it provided declamation schools with a way to precisely and successfully store the tone and intensity of human voice. The diatonic and chromatic scales of music didn't have enough notches to accurately represent the tone and intensity of human voice. During the presentation, chemist Giuseppe Gazzeri objected that a mechanical device could never make a sound similar to the human voice, as the material of which the human phonation system is made and the materials of which a mechanical device is made are intrinsically different.