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Workaccount2yesterday at 3:41 PM2 repliesview on HN

No, because the drive circuit for a speaker is the opposite of the circuit for a microphone. The output stage of a speaker amplifier is just that, an output. The only way to record audio from a speaker, which is totally possible, is to have also purposely built an input stage also attached to the speaker. Which at that point you might as well just use a microphone...

Audio input and output are not reversible.


Replies

Y_Yyesterday at 4:08 PM

I don't know what you mean here, I can plug a speaker into my mic slot and use that to record, just as plugging a mic into the speaker slot gives a (crappy) speaker.

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stragiesyesterday at 4:14 PM

on many cards they are, check out the tool `hdajackretask` from package `alsa-gui-tools`.