This guy had an awesome idea, he took his iPhone and put it inside his guitar, turned on the camera, and started to play. He wanted to get a good look at what the strings look like when they are played. What is captured is mesmerizing. You can almost see the music being played visually. It’s very cool when people mix traditional instruments with new technology. Make sure you watch the strings.
After he puts the iPhone insider the acoustic guitar, he starts playing folk rock, then Johnny Cash, bluegrass wildwood flower, and John Mayer’s Stop This Train, all with the camera capturing this amazing oscillation in real time.
You can do it too!
There’s actually more to capturing the oscillations of your guitar strings from inside your instrument than dropping your phone insider a guitar. It requires a few camera lighting tricks and an iPhone.
The effect seen in the video is called rolling shutter. Reminiscent of a strobe light, the rolling shutter effect does not capture all elements of an image at exactly the same time, but portrays each frame in its entirety during playback.
It’s the same effect that explains this seemingly nonsensical footage of airplane propellers flying off the actual propeller and disintegrating in thin air.
Also, notice that after embedding the iPhone in the instrument, the guitarist goes outside for the actual demonstration. That’s because backlighting is critical to capturing the effect.