Only 1 Out Of 20 Can Hear This Melody – Take the Hearing Test with Wolfgang Saus Only 1 Out Of 20 Can Hear This Melody – Take the Hearing Test with Wolfgang Saus Sygyt Software Published on Apr 19, 2019 Train your perception to hear the harmonics in your voice with this hearing test created by the voice researcher Wolfgang Saus: https://www.oberton.org/en/hearing-te… Spectrogram made with “VoceVista Video” by Sygyt Software: https://www.sygyt.com