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Transfer sound using light

Why use Wi-Fi when you can transmit an audio signal using a laser pointer or LED? :)

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Comments

25 comments posted so far. Login to add a comment.

rated -2

1 Comment rating too low, click to show Posted 647 days ago by BigBang

Uhm yeah... place the laser on a table in 3m distance to the opto transistor, adjust it, kick the table, and adjust it again... and again... every single time a part moves like 2cm.

not rated

2 Posted 647 days ago by BombDiggady (moderator)

Very Interesting!
I have to try this myself. :)

rated -3

3 Comment rating too low, click to show Posted 647 days ago by cannnobaL

Worthless.

rated +3

4 Posted 646 days ago by DarkiKun

Why do ppl have to post just to say its worthless? that's just retarded.
its an interesting experience and its not made to be useful.

rated -1

5 Posted 646 days ago by MrGood

i think if it can only work with a line of site and he only has it 5 meters away. I think its cheaper to buy a 5 meter 3.5mm jack male to male cable. Rather than getting 5 croc cables, a resistor, laser pointer and 2x 3.5mm plugs.......

rated -2

6 Comment rating too low, click to show Posted 646 days ago by Mix

i know a better way to get sound/music, just press play on your mediaplayer...^^ don't get the point of this...

rated +1

7 Posted 646 days ago by bjoast

Indeed, #4.

not rated

8 Posted 646 days ago by SixaxisDualshock

I get the point of this, but [url=http://www.hak5.org/]Hak5[/url] did this like over a year ago or something.

rated -1

9 Posted 646 days ago by Kosmology

looks fake or something is this for real?

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10 Posted 646 days ago by Pblack086

Thats Fuckin sweet!!! :O

not rated

11 Posted 646 days ago by keyshey

really awesome!
i wonder if theyre using this technology w/ any consumer products now
nice!

not rated

12 Posted 646 days ago by joeherper

You could set up a wireless network with infra-red light that would not have free riders. This is a very basic application of what is a promising way to send information with a degree of broadcast control.

rated -1

13 Posted 646 days ago by jesus

They call me jesus for a reason

rated -1

14 Posted 646 days ago by jesus

They call me jesus for a reason

not rated

15 Posted 646 days ago by richardhalo

"hipateen" MUST BE BANNED FROM THIS WEBSITE ASAP!!!!

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16 Posted 645 days ago by jwn

Very cool. He's modulating the audio signal in the visual spectrum. Forget gigahertz, this guy is working at 500 terrahertz.

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17 Posted 645 days ago by jOzzie

Made this one years ago for Physics. It's nice to make it yourself but not very usefull :)
But I read that it should also be possible to hear people talk in another room when pointing the laser at a window and catching the reflecting bundle... because when someone is talking there it should make the glass tremble a little bit >:) unfortunately I hadn't time to try it... :|

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18 Posted 645 days ago by TeeZee

FOCUS!!!!!!!

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19 Posted 645 days ago by scouse1

kavina ok calm down a bit will ya ur gettin borin

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20 Posted 644 days ago by lacroupade

hey that should work really great on the train on the way to work....

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21 Posted 644 days ago by rdsgalvao

Nothing new about this. I've been using optical wireless headphones for over a year.

In case you don't know you can buy them almost anywhere, the only difference is that they work with a UV LED, so that as to reduce interference from other light sources.

not rated

22 Posted 624 days ago by killest

Sony released a TV that had Wireless Infrared Headphones Way back in the early 90s
It's really cool stuff

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23 Posted 620 days ago by nooitaf (moderator)

this gets very interesting at the prices you have to pay nowadays for very strong lasers.. the simplicity is just amazing! with 8 lasers you could actually transit dolby7.1 .. woow :D .. and even if you could buy a cable thats cheaper .. a laserbeam just looks awsome compared to any cable out there!

Go Laser, go laser ! >:)

not rated

24 Posted 524 days ago by liqxpil

#13 because u must end crucified

not rated

25 Posted 63 days ago by RamsMaiden

Science is fun isn't it .....this is cool