Google listens to every word you say ALL THE TIME!
RLK Show this Post
04-16-2018, 04:39 PM #17
Quote: both mics and speakers(/headphones) have a diaphragm, and as mentioned in the Wikipedia article:
Microphones can be thought of as speakers in reverse
both incorporate circuitry able to translate vibrations into electricity (or vice versa). In other words, both have an electrical signal on one side, and vibrations on the other. The difference is what is labelled as input.
if you think about the original phonographs, the same component was used to record and listen to sound.
So yes, a speaker can pick up vibrations (albeit sub-optimally), and a microphone can emit vibrations (albeit sub-optimally).
Many TV speakers are actually speaker arrays, too, so that you (sort of) have an array of tuned inputs (important because it might allow using post-processing to enhance the wanted audio).
This doesn't address the software question, but mechanically, a speaker can function as a microphone.
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