Hello!
Couple days ago have bought the audio card. Qite quickly I had installed it to PC:

Ubuntu Ubuntu 22.04.2 LTS
Motherboard Gigabyte ga-h61m-ds2
NVIDIA Corporation GA104 [GeForce RTX 3060 Ti Lite Hash Rate]

it works ok: plays and records.
This sound card has separate inputs for two microphones. An issue what was observed was during recording an output stereo file:

arecord -d 0 -c 2 -r 44100 -f S16_LE -t wav -D default stereo_wav_file.wav

every channel contains sum of Mic1 and Mic2 signals.


Manipulation with alsamixer did not fix this issue. Is there a way or settings to make recording of each microphone to separate channel of stereosignal?

Thanks.

Have you tried a more sophisticated recorder like Audacity?

Sure, from Audacity I get something like this:


both channels are looking the same.

Audacity input setup does not let you choose them separately? Anyhow, if both mics get the same input then their output must look same.
We are not there looking over your shoulder. You should describe how you set up the inputs and how to use your mics, and anything else you think we should know.