The ALSA Loopback sound card is a virtual soundcard that is created once the ALSA kernel module snd-aloop is loaded. This virtual soundcard device, as its name indicates, sends back the output signal of applications using it back to itself, so one has a chance to e.g. record this signal from the same device. Simply imagine that you have a physical link between one OUT and one IN of the same device. By default, the Loopback sound card consists of 2 devices, each composed of 8 subdevices.
I required the ALSA Loopback device to re-route sound from one application to another when streaming Airplay to a Logitech Squeezebox see here. Read on to see how I installed the ALSA loopback on Ubuntu 10.04...
I required the ALSA Loopback device to re-route sound from one application to another when streaming Airplay to a Logitech Squeezebox see here. Read on to see how I installed the ALSA loopback on Ubuntu 10.04...
