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ECE 4760 Final Project: Laser Audio Transmitter
https://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/s2009/dyz2_jl589/dyz2_jl589/
This project is a proof-of-concept device that transmits an audio signal using a laser beam, while removing the need for the user to align the beam themselves. …
Simple and Cheap Laser Digital Audio Transmission : 4 ...
https://www.instructables.com/Simple-and-Cheap-Laser-Digital-Audio-Transmission/
A bit of lateral thinking pointed me to an ultra cheap D-class audio amplifier called a PAM8403. I used it before as a real audio amplifier in the laser gun project. It does exactly what we want, pulse width modulating the audio input. Small boards with the required external components can be procured from eBay for under 1 Euro.
A Laser Audio Transmitter | Hackaday
https://hackaday.com/2012/08/31/a-laser-audio-transmitter/
A Laser Audio Transmitter. Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this ...
Laser Audio Transmitter – mahi's
https://davindermahi.com/2017/05/02/laser-audio-tran/
Looking for some analog circuits to make i got this circuit of laser based audio transmitter on efy website. Giving it a try I decided to build one from the parts lying around. It uses a common 741 and LM386 ICs. Only schematic is available so created a layout for both transmitter and receiver. i have used signal from mobile jack instead of ...
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