3 ms·
Ever tried to connect a corded headphone into a microphone jack? It works quite well
by treve 6y ago
Ever tried to connect a corded headphone into a microphone jack? It works quite well
- wizzwizz4 6y agoIs there some kind of diode for AC signals?
- formerly_proven 6y agoYes, they're called amplifiers. Directional coupling circuits would apply in theory, but not in practice; they're good enough to do full-duplex audio over two wires, but not nearly good enough to deal with the sensitivity of analog inputs if you want to prevent a signal from being read.