The processes are opposite (one takes electrical signals as input, and outputs air vibrations, one takes vibrations in the air and transforms them into electrical impulses).īoth mics and speakers (or headphones) have a diaphragm, and as mentioned in the Wikipedia article: One simple experiment you can run is to plug your headphones into a microphone input and speak into them.įundamentally, both emitting sound and capturing sound is about dealing with vibrations in the air. Are speakers that sensitive?Ĭan software be used to operate an average consumer speaker as a microphone? While an audio chip being a generic converter makes sense, I don't see how an average speaker can convert incoming audio into useful signal.

I can't tell if Garret is being serious here. Telling them to disconnect the internal speakers as well. That putting glue in their laptop microphone is any use unless you're Reconfigure the internal speaker output as an input and listen to you FromĪnyone who's ever plugged a microphone into a speaker jack probably Possible to reconfigure an input as an output or vice versa. Outputs and some people vice versa, so it's not uncommon for it to be Makes board layout more annoying and some people want more inputs than These days audio hardware usually consists of a very generic codecĬontaining a bunch of digital→analogue converters, someĪnalogue→digital converters and a bunch of io pins that can basicallyīe wired up in arbitrary ways.

Use speaker as microphone