I basically want to setup my Linux computer to record multiple Line ins.
The problem is I have only one line in input in my sound card.
I need multiple Line in or RCA audio inputs. I'm looking for either PCI devices or USB or bluetooth or any other cheap solution.
Reason: I have many so called 12 volt CCTV mics. They take 12v input and output RCA audio. I used a RCA to 3.5 mm converter and connected one to the Line in of my computer and that worked perfectly.