Currently I am trying to replace a older computer system running acid with a Beagle Bone Black running Astres. Everything is working fine except the Audio that I am taking off of the USB port echo's very bad both over the repeater RF signal and over the internet link. Also, I am using a DMK Engineering URIx to interface the Beaglebone black to the repeater. When I disconnect the BeagleBone and replace it with the computer, the echoing disappears. Can anyone help me?