In line microphone doesn't work

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Joined: Tue Nov 19, 2019 6:21 pm

In line microphone doesn't work

Post by okaminer » Tue Nov 19, 2019 6:26 pm

I've installed the card on the raspberry pi 4
The built in mic and the speakers works fine but when I change it to use the line in mic the microphone doesn't work
I've been using the instructions on
Once I run the alsactl --file /usr/share/doc/audioInjector/asound.state.RCA.thru.test restore the connected mic doesn't work.
when I can alsactl --file /usr/share/doc/audioInjector/asound.state.MIC.thru.test restore the built in mic works fine
I've tried 2 different mics.

Any idea what I can check or do?

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