I'm trying to record a Google Meet call I'm participating in (audio only). Creating a combined sink from a null sink and my headphones sink, redirecting browser to combined sink and recording null sink monitor fulfills the first part of that task:
pacmd load-module module-null-sink sink_name=recording sink_properties=device.description=recording pacmd load-module module-combine-sink sink_name=combined sink_properties=device.description=combined \ slaves=recording,alsa_output.usb-Sennheiser_Communications_Sennheiser_USB_headset-00.analog-stereo
Now I'm recording "theirs" side of call with
parecord --channels=1 -d recording.monitor recording.wav
Now the second part of the task is to record "my" side of call (the sound which is sourced from my microphone). Ideally I'd like to get the recording in a single file, putting sinked and sourced sound on different channels, but separate files will also do.