Live audio streaming server in realtime

Hello everybody, My name is Kristian and I need to stream to LAN 5 live audio inputs from 5 different usb soundcards in really REALTIME. The streaming format should be compatible with Android and iOS devices as listening clients, it would be the best if it's done in Unix environment but not a necessarity. If you have some additional questions regarding the project, feel free to contact me. Thank You for Your time. Kristian