Square Wave from the summation of odd-integer harmonic frequencies

[watchnerd]

This is an amazing bit of sample code that allows you to vary harmonic frequencies and see how the wave form changes.

This is just like....wow.....huge chunks of signal processing theory covered in this interactive, intuitive sample code/

Original:

https://www.khanacademy.org/compute...integer-harmonic-frequencies/5389081424166912

Tweaked:

https://www.khanacademy.org/compute...integer-harmonic-frequencies/5154727290208256

 

[DonH56]

https://www.audiosciencereview.com/.../composition-of-a-square-wave-important.1921/

Someday I need to learn how to do fancy animated graphics, but I be a simple hairy-knuckled EE nd not a high-brow programmer type...

 

[Blumlein 88]

I always liked this mechanical version. Be sure and watch the other parts on synthesis and analysis using this machine.

 

[watchnerd]

I always liked this mechanical version. Be sure and watch the other parts on synthesis and analysis using this machine.

Wow.....

I don't know why I'm so much more impressed seeing math implemented mechanically instead of in software, but I am.