A diaphragm is a diaphragm...wiring a speaker up backwards creates a (piss poor) microphone, just as wiring a microphone up backwards creates a (even more piss poor than the other way around) speaker.
Fact:
Yes, shining a laser at something like a window, and measuring its reflected energy, creates a "laser microphone"... This is literally 70's technology...
Oh the stories I wish I could tell.............
I’ve got time. Go ahead.
One can learn many things if only one seeks to know.
Curiosity is the fire that personal advancement is forged inside of...
Fact:
I leaned long ago that you can use headphones as a microphone.
Fact :
The Three letter agencies have laser microphones
Fact:
A diaphragm is a diaphragm...wiring a speaker up backwards creates a (piss poor) microphone, just as wiring a microphone up backwards creates a (even more piss poor than the other way around) speaker.
Fact:
Yes, shining a laser at something like a window, and measuring its reflected energy, creates a "laser microphone"... This is literally 70's technology...
Fact:
We are far, FAR beyond that now....
But... Can you induce vibrations with a laser? Or only measure them?
As far as I’m aware, you could only induce vibrations on something very small, such as a hair or piece of paper.
Stop teasing us, you've said this before :)
One can learn many things if only one seeks to know.
Curiosity is the fire that personal advancement is forged inside of...