diger44

If you want to see how the Fourier series work with sound and oscillators, I made a cool interactive visualization here: http://bgrawi.com/Fourier-Visualizations/

Hi, creator here,

I appreciate your feedback, my eventual goal of this site is to expand to concepts like directly using FFTs with arbitrary waves where your suggestion might be constructive, as yes circles on circles does make it seem more complicated than it is. One of the goals of this specific visualization was to demonstrate how fourier series relate to oscillators and sound, in which case a circle representing a frequency or set of tones added together made more sense.

For reference, I did not personally come up with this particular style of representing Fourier Series, I based it on this: https://commons.wikimedia.org/wiki/File:Fourier_series_squar... which is used on the main Wikipedia page about Fourier Series themselves.

Creator here, sorry about that! It's because Safari does not fully support WebAudio yet, and I can't really test it to see what's causing the issue. Use chrome for now to see the whole thing work.

Hi, I am the creator of this visualization. I didn't know that it was posted last night, but I can answer any questions you have now. I've added a "Tips/things to try" modal to it. I don't know how many of you tried the audio portion of the visualization, but it's a cool and more unique part of the demo!

The github link is here: https://github.com/bgrawi/Fourier-Visualizations

I actually thought this was another joke at first...