bobw 0 Posted May 1, 2013 Is there a reasonably priced dvr that will record audio as well as video onto a usb back up.? the avtech records audio and you can hear it on playback but it doesn't put it on to the backup disc. I'm assuming this is because the box continues to record what's going on currently during a usb backup and the's only one input and output for audio and it can't do two things at once. . . . . Share this post Link to post Share on other sites