“Each person has a harmonic signature that is distinctive, unique and individual. The energy in the human voice can be measured with a Spectrum Analyzer and frequencies can be sorted to reflect vibrations in frequency bands associated with the notes C through B on a piano. When individual frequencies are played back to the person, the resultant change can be reflected at the cellular level, in brain wave patterns, unification of the energy field and in the experiential state of being.”
Lana J. Ford, Ph.D.Personal Voice Pattern Chart highlighting your personal ‘signature tones’
Original source of information and more to learn on the system created by Ani Williams at:
https://aniwilliams.com/voice-spectrum-analysis/
https://aniwilliams.com/wp-content/uploads/2020/11/Voice-Analysis-Science.pdf
SOUND ALCHEMY, © Ani Williams from Songaia Sound Medicine http://www.aniwilliams.com/
Ani Williams interview from the documentary The Song Within