HardOCP News
[H] News
- Joined
- Dec 31, 1969
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iPhone 4 or not, this is pretty neat don't you think?
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I cant stand people jamming their guitars, especially outdoors, I wanna smash their guitars, and that guy would loose his iphone in the process also
The clip was cool though
I cant stand people jamming their guitars, especially outdoors, I wanna smash their guitars, and that guy would loose his iphone in the process also
The clip was cool though
I totally understand! When I see (or hear) people spreading art and culture it totally makes me want to punch a kitten!
I'm pretty sure that's not real... the mode shape looks way too high for a guitar....
If anything, this shows you how good the iPhone4 camera isn't.
I cant stand people jamming their guitars, especially outdoors, I wanna smash their guitars, and that guy would loose his iphone in the process also
The clip was cool though
The clip was cool in a non-apple, non-hipster way. However, I want to strangle him with his guitar strings or break the guitar over his head for the multiple times he stopped/cut playing "Tears in Heaven".
I'm pretty sure that's not real... the mode shape looks way too high for a guitar....
The way the strings were vibrating was certainly odd... Not sure what to make of that...
Guitar strings look the same way when played under a strobe light. It's really fascinating to see for the first time, especially if you have no prior knowledge of it.
If anything, this shows you how good the iPhone4 camera isn't.
Also why was the iphone in the guitar? Couldn't you just as easily put a bright light in there and had the iPhone shooting from down at it?
Hmm makes sense, guess the iPhone simply slips in, where as a light would require the strings to be removed... getting the iphone out may have been a bit trickier thoughProbably because he had an iPhone but not a bright light that could fit into the guitar? And if you're going to use an iPhone anyway, why add another, unnecessary component to the process?
The real question is why did he use the iPhone's microphone - audio quality was garbage.
I know that. Unless the guy went old-school and used catgut. LOLThose weren't steel strings, that was a classical guitar using probably mostly nylon.
The funny part, though... The wave shapes of the vibrating strings looked distorted... Like the audio.Probably because he had an iPhone but not a bright light that could fit into the guitar? And if you're going to use an iPhone anyway, why add another, unnecessary component to the process?
The real question is why did he use the iPhone's microphone - audio quality was garbage.
That's what I was thinking, what's the frame rate of the iphones video camera feature?
Also why was the iphone in the guitar? Couldn't you just as easily put a bright light in there and had the iPhone shooting from down at it?
I know that. Unless the guy went old-school and used catgut. LOL
Still... The vibration shape of the strings just looked... Odd. Not round enough considering what I've seen on an oscilloscope in the past.
Cameras don't take pictures instantly like film does. The light sensor chip is actually made up of thousands of little light sensors, and the controller has to get the color information off each of them one by one. If the object it's looking at is moving fast enough, the camera could be looking at something diffent by the time it reaches the last sensor. Sort of like playing a game with vsync off.
It's the digital version of motion blur.
No. CCD sensors (most digital cameras - point and shoots, DSLRs, etc..) do not have a rolling shutter and thus do not have this problem. Most CMOS sensors (cell phones, other tiny embedded cameras) have a rolling shutter, but it isn't actually a limitation of CMOS necessarily, they *could* have a global shutter, they just almost never do (not sure if it's a cost thing or a size thing)
No. CCD sensors (most digital cameras - point and shoots, DSLRs, etc..) do not have a rolling shutter and thus do not have this problem. Most CMOS sensors (cell phones, other tiny embedded cameras) have a rolling shutter, but it isn't actually a limitation of CMOS necessarily, they *could* have a global shutter, they just almost never do (not sure if it's a cost thing or a size thing)
Googled "rolling shutters" and turns out the iPhone4 does have it after all. The explanation i gave above does apply