Learning Intentions
To learn how sound waves combine to form complex sounds
Notes
Jeff Regester – Acoustic Beats (1:26)
What is a Fourier Series? (Explained by Drawing Circles) – Smarter Every Day 205 (8:24)
Sine Wave to Square Wave using Fourier Series (1:03)
Brek Martin – Fourier Series Animation (Square Wave) (2:26)
Fourier series can be used to simulate an instrument electronically.
Additive synthesis: building sounds with sine waves (watch 4:32 to 5:26)
If you zoom in on a vinyl record, you can see the waveforms of the music that is encoded on it. The smaller squiggles are high frequency sounds, and the broad outlines of the track are the lower frequency sounds.
See Also
