Comment on What is negative voltage?
bluesheep@sh.itjust.works 5 days agoIf you want to know something else mind blowing, you can actually use a speaker as a (very shitty) microphone! The same principle of moving the cone by applying a voltage works in reverse: if you move the cone you will create a voltage. And since sound is nothing but moving air, talking into a speaker cone will create a voltage in relation to the sound.
kernelle@lemmy.dbzer0.com 4 days ago
Thats the sidenote on my previous comment!
bluesheep@sh.itjust.works 4 days ago
Oh shit lmao I completely read over that. Guess we both thought it fascinating enough to mention haha
kernelle@lemmy.dbzer0.com 4 days ago
No worries! I did blow out a microphone this way, plugged it in an out- instead of an input and only realised my mistake when I heard faint music through the microphone
bluesheep@sh.itjust.works 3 days ago
No fucking way haha, you must have been driving that thing to a new plane of existence for it to be that audible or not?