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Fun fact: any device with a speaker can be turned into a microphone because a speaker is fundamentally the same thing as a microphone (a membrane connected to a
by mrb 8y ago
Fun fact: any device with a speaker can be turned into a microphone because a speaker is fundamentally the same thing as a microphone (a membrane connected to a coil/magnet).
- randcraw 8y agoYes, any speaker can become a mic, but only if you plug it into an amp's input channel. Unfortunately for the CIA, they're all plugged into output channels.
- throw082 8y agoinput and output channels are not always physically different pins, sometimes it's just a software configuration. see https://news.ycombinator.com/item?id=13014435 https://news.ycombinator.com/item?id=13014435