Tom Scott, The Gregory Brothers - How Auto-Tune Works lyrics

Human voices don't sing pure tones
They're stacked with many frequencies
These natural resonating overtones
Sound like a single pitch to human ears

I spent hours trying to understand
(trying to understand)
How pitch correction actually works
(actually works)
But my degree's in linguistics
And I wasn't prepared
(prepared, prepared, prepared)
For equations that were this berserk
(berserk, berserk, berserk)
The sеcret is math
(math) called a Fourier transform (transform)
It takеs the frequencies
That were intertwined (twined, -twined)
Split's them up, identifies them
Isolates them (isolates, isolates them)
Then software can change them live
In real time (time, time)
The newest software can change different
Notes inside a chord
You can tune pianos, guitars or choirs
To me, it's so advanced
It might as well be magic (magic, magic)
But it can't write a song
Some talent's still required
Oh yeah, some talent's still required!