There's no provisions on the Android 1/8 jack for anything but single channel audio. A better bet might be a USB audio device. Samsung (and most Androids) support USB host mode and the kernel will support USB Audio 1.0 over USB 1.1 (yeah, it gets confusing). You'd probably need a custom kernel which means a rooted Android. I'm going to look into this. I use my Android (Nexus 5) as a bit bucket for the Transit USB audio device tied to my rig and it works pretty well.