Reply to post: Re: Confusing

Sorry friends, I'm afraid I just can't quite afford the Bitcoin to stop that vid from leaking everywhere

Persona Silver badge

Re: Confusing

"You can turn a speaker into a microphone by reversing the polarity or something. "

Sigh. You can use a moving coil speaker as a microphone, but only by putting it into a circuit that does the exact opposite of the electronics used to power the speaker. A circuit that goes DAC -> amplifier -> speaker is more than just a "polarity change" to go to speaker-mike -> amplifier -> ADC

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