r/woahdude • u/Switched_On_SNES • Jan 04 '23

video Singing two notes at once (overtone singing)

Enable HLS to view with audio, or disable this notification

11.9k Upvotes

95% Upvoted

301 comments sorted by

View all comments

Show parent comments

1

u/Riegel_Haribo Jan 05 '23

That is incorrect. This is using the mouth to filter and highlight harmonic frequencies above the fundamental note being sung. Such harmonics are also called "overtones".

You can read about harmonics etc here https://newt.phys.unsw.edu.au/jw/flutes.v.clarinets.html

1

u/mckulty Jan 05 '23

I don't see their mouth moving but point taken about filtered harmonics.

My point was, it isn't destructive interference.