Music over a laser beam
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Uploaded by samerps2 on May 13, 2010
songs:
burn - deep purple.
no one like you - scorpions.
beat it - michael jackson.
for more info check
http://hackedgadgets.com/2010/05/13/send-music-over-a-laser-beam/
- 37 likes, 3 dislikes
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Uploader Comments (samerps2)
All Comments (12)
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Down-voted because you didn't provide any schematics or remotely useful information. You said that you used frequency modulation, but unless you have a tunable laser that is not possible. I suspect you may have really meant pulse frequency modulation.
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@MrSean364 actually you have no idea how this technology works. This technology is closer to a needle on a record rather than a optical laser reading CDs. Its reading the intensity off the laser like grooves in vinyl. Betta recognize, cause shit is mind blowing.
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Make a second one & wire in a couple of mic's & you can talk to your neighbor in the middle of the night.
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You're thinking of digital audio, 1's and 0's. This uses the of amplitude modulation, which is an analogue method of carrying a signal. The audio input is controlling the intensity of the laser (the amplitude), the light is received at the other end, and then it's demodulated/amplified back into a usable signal.
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HOLY SHIT!!!
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Old technology, this has been used for decades already. Think CD, DVD and Blu-ray players, and optical audio. Also used on hard drives. His is just a hand-held version. Impresive for made at home nontheless, but not relativly new technology.
MrSean364 1 year ago
@MrSean364 the concept and technology is not new of course, but CD and DVD players work on an entirely different principle.
samerps2 1 year ago 2
Love it! Thanks for sharing!
oehrlein49 1 year ago
@oehrlein49 thanks man, i checked your videos and they're great !!
samerps2 1 year ago
How do you modulate the signal?
Anquav 1 year ago
@Anquav by using an FM modulator
samerps2 1 year ago