Interesting Free* Guitar Oscilloscope

[Harry]

Don't know how many of you ever noticed this, but if you hold your guitar between you and your tv and hit certain notes you can see the string oscillate, it looks like it slows down. I thought it was pretty weird when I first noticed it.

[Seljer]

Yeah. I noticed that....but I've got an LCD for my computer now (and I don't really watch TV)

http://en.wikipedia.org/wiki/Stroboscope


this is a neat little device too: http://www.strobotron.com/

[A.S.P.]

FLASHLIGHT

(see album-pic & click song#6)

[moosapotamus]

this is a neat little device too: http://www.strobotron.com/

I'm pretty sure that is now the Planet Waves S.O.S. GUITAR TUNER.

~ Charlie

[Processaurus]

Don't know how many of you ever noticed this, but if you hold your guitar between you and your tv and hit certain notes you can see the string oscillate, it looks like it slows down. I thought it was pretty weird when I first noticed it.

That happens with the flourescents in our practice space, some notes make it look like the string is wiggling slow.  Kinda trippy in a crappy way: "your strinngs are moooving soo slooww mannn"

Its limited, but I like the scope in this program, G-tune, its mainly a guitar tuner for the PC.

[Harry]

From Wikipedia 'Vibrating String':
"One can see the waveforms on a vibrating string if the frequency is low enough and the vibrating string is held in front of a CRT screen such as one of a television or a computer (not of an oscilloscope). This effect is called temporal aliasing, and the rate at which the string seems to vibrate is the difference between the frequency of the string and the refresh rate of the screen. The same can happen with a fluorescent lamp, at a rate which is the difference between the frequency of the string and the frequency of the alternating current. (If the refresh rate of the screen equals the frequency of the string or an integer multiple thereof, the string will appear still but deformed.) In daylight, this effect does not occur and the string will appear to be still, but thicker and lighter, due to persistence of vision."

[Harry]

Another interesting thing I found; (It may be different with your guitar/tv) If I hit 1st fret on A string and bend the string appears to move forward than backward and if your really precise you can make the string stop! Just a bendy string sittin' there.

[moody07747]

Don't know how many of you ever noticed this, but if you hold your guitar between you and your tv and hit certain notes you can see the string oscillate, it looks like it slows down. I thought it was pretty weird when I first noticed it.

That happens with the flourescents in our practice space, some notes make it look like the string is wiggling slow.  Kinda trippy in a crappy way: "your strinngs are moooving soo slooww mannn"

Its limited, but I like the scope in this program, G-tune, its mainly a guitar tuner for the PC.

one of the many reasons metal workers don't use flourescents near any motor powered device....mills could be spinning but if you get it at just the right speed it will make it see as if the mill is not moving when it actually is....

[petemoore]

  The 'roach coaches' exhaust fan that appears to be slowly turning counter-clockwise...when 'pictures' of it are taken at certain intervals...
  The flourescent lamp only 'shoots' a still image of the fan in 'certain' intervals, making it *appear as though the blade is moving counter-clockwise...you can't *Always trust your eyes...
  I guess this qualifies as an optical illusion.