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Guitar string oscillations seen with cell phone camera.

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dwell

pics?
Oct 9, 1999
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Pretty cool. Looks a lot like when you run an electric guitar through an oscilloscope. The lower strings have longer waves and the higher strings are tighter. They can be almost perfect sine waves if you hit the strings right.
 

DrPizza

Administrator Elite Member Goat Whisperer
Mar 5, 2001
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Awesome, and marked for use in physics class. :) Amazing how many things I find in ATOT that I can somehow twist into a classroom lesson for a quick demonstration. I guess that makes ATOT educationally justified for me to access from work. :D
 

Born2bwire

Diamond Member
Oct 28, 2005
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Pretty cool. Looks a lot like when you run an electric guitar through an oscilloscope. The lower strings have longer waves and the higher strings are tighter. They can be almost perfect sine waves if you hit the strings right.

As neat of an effect it can't be actually getting the oscillations of the strings. For one, the distortion appears to be fairly bad in terms of the number of harmonics. But mostly it's because the wavelength is way too short. You want to vibrate the string at the fundamental frequency which will have a wavelength twice as long as the fingered string. The fundamental frequency and its harmonics will have wavelengths too long to be captured like this. The video's comments already provide the more plausible explanation. That the result is due to a rolling shutter which is creating a distorted image.
 

dennilfloss

Past Lifer 1957-2014 In Memoriam
Oct 21, 1999
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As neat of an effect it can't be actually getting the oscillations of the strings. For one, the distortion appears to be fairly bad in terms of the number of harmonics. But mostly it's because the wavelength is way too short. You want to vibrate the string at the fundamental frequency which will have a wavelength twice as long as the fingered string. The fundamental frequency and its harmonics will have wavelengths too long to be captured like this. The video's comments already provide the more plausible explanation. That the result is due to a rolling shutter which is creating a distorted image.

That's what he says in the video description.
 
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