That command makes no sense at all. I do use the ALSA loopback driver all the time. There is very extensive documentation at: http://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_bridge but for many people I suspect this is too long, too detailed, too explanatory. I keep meaning to write up a short more "just do this" document but have not done so yet. On Sun, Jun 28, 2015 at 6:46 AM, Matt Flax <flatmax(a)flatmax.org> wrote: