The only app that I’ve found that can solve this is n-Track Studio, because it lets choosing between real inputs (not just "microphone", "camcorder" or "default"). So, I chose the first one with 2 channels, and the recording is real stereo. Unfortunately, it doesn’t let to play sounds to other apps on the background and I need that (and anyway, I would like to use a simple app, that one is too heavy)
Does anyone know if there is any way to "tell" Android that I want a real stereo input, and not just the first channel (left) if I plug this USB device?
Thanks for you time.