this post was submitted on 06 Sep 2026
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[–] SaveTheTuaHawk@lemmy.ca 6 points 3 days ago (2 children)

Any device with a speaker can be retasked to use it as a microphone.

[–] JustEnoughDucks@feddit.nl 4 points 2 days ago* (last edited 2 days ago)

Well... No. And opamp output is fully different than an opamp input. They aren't reversible.

The electronics would have to be specially designed to be a transceiver instead of just a speaker output (I mean, they definitely can do it, it just is more work and more cost)

It would be 10x cheaper just to put a microphone in it.

[–] LodeMike@lemmy.today 6 points 3 days ago

Sort of. Most of them would need a change in hardware to support it.