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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25 comments posted so far. Expand all comments Login to add a comment.
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.
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.......
6. Comment rated too low. Show this comment Mix 4 years ago
i know a better way to get sound/music, just press play on your mediaplayer...^^ don't get the point of this...
8. SixaxisDualshock 4 years ago
I get the point of this, but [url=http://www.hak5.org/]Hak5[/url] did this like over a year ago or something.
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.
Very cool. He's modulating the audio signal in the visual spectrum. Forget gigahertz, this guy is working at 500 terrahertz.
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... ![]()
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.
Sony released a TV that had Wireless Infrared Headphones Way back in the early 90s
It's really cool stuff
23. nooitaf (admin) 4 years ago
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
.. 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 ! ![]()



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1. Comment rated too low. Show this comment BigBang 4 years ago
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.