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The World of Harmonics – With a Coffee, Guitar and Synth

76 pointsby gregsadetskylast Monday at 12:53 PM15 commentsview on HN

Comments

rhinoceraptortoday at 7:13 PM

If you have an analog oscilloscope, it's really cool to put a guitar signal into it, you can play an open string and see all its harmonics, then play a harmonic and you just see the one harmonic.

elihutoday at 10:32 AM

A minor terminology quibble: the video refers to the Nth harmonic as if it's the fundamental frequency times N+1, but it's usually fairly standard to refer to the frequency that's N times the fundamental as the Nth Harmonic. So, the fundamental is the 1st harmonic.

For overtones, there's less of an established standard, but usually the 1st overtone is twice the fundamental, the 2nd overtone is 3x, and so on. (I tend to avoid talking in terms of overtones because of the ambiguity.)

show 2 replies
nexus6today at 3:23 PM

Cool that’s the guy behind MyNoise. The background audio generator. Nature sounds, Synths, Ambient, ETC. Has mobile apps as well.

hypertextherotoday at 3:41 PM

My favorite part of the video is when Stéphane “makes a mistake” and shows it, like enlightened people, such as Cliff Stoll — https://www.youtube.com/watch?v=9yUZTTLpDtk — do :)

lonelygiraffetoday at 10:56 AM

Cool video. Thanks! Going to make some coffee and play my guitar (-:

importtoday at 2:26 PM

That was a really good one.

Elias-Brauntoday at 3:14 PM

the pømp in this coffee mashine isn't rotating

sargxtoday at 3:00 PM

ohhhh i loved it!