String oscillations on iPhone video

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Andy Culpepper

Posts: 3023
Joined: Mar. 30 2009
From: NY, USA

String oscillations on iPhone video

Dunno if you guys have seen this yet... it's pretty crazy. Apparently it's due to the rolling shutter and not actually how the strings vibrate.

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Andy Culpepper, luthier
http://www.andyculpepper.com

REPORT THIS POST AS INAPPROPRIATE | Date Nov. 25 2011 21:27:04

El Kiko

Posts: 2697
Joined: Jun. 7 2010
From: The South Ireland

RE: String oscillations on iPhone video (in reply to Andy Culpepper)

I think it is how the strings vibrate caught in a stroboscopic type effect due to the note frequency and the frames per seconed it catches the vid at ,
like when you see a airplane propeller apparently go bakward due to the nature of the camera catching it and your own telly ///
I phone can do vids up to 30 f.ps.
Standard A for example is 440.
30 * 14 = 420 and all the multiples that you can get on or about different frequencies found in the guitar range, , I don't see why not ......

Anyway its cool , I like it ..wierd....

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REPORT THIS POST AS INAPPROPRIATE | Date Nov. 25 2011 22:04:02