Loopback is intended to help you merge different audio sources by creating virtual devices. Moreover, the tool allows you to easily route audio between various applications, particularly those intended to process it. Learning to use this tool may be somewhat difficult at first, probably because it uses a radically different approach to combining audio sources. However, you will probably get used to it quite soon. Luckily, Loopback comes with excellent documentation and there is even a welcoming tutorial.
Most of the operations are done from the application’s main window. In this respect, there are two basic panels. On the left, there is a list of all the virtual audio devices configured on your system. On the right, there is a bigger space, which is devoted to configuring the currently chosen device. Luckily, this is done with a lot of visual support.
When you run Loopback for the first time, there is a virtual device already created for you. Moreover, whenever you create a virtual device, it is automatically enabled. However, any device can be easily turned off by a simple switch. One of the advantages of Loopback is that it makes permanent changes to your system in such a way that you do not need the tool to be running for the virtual devices to work.
Another convenient feature of this tool is that it can create “pass-thru devices”, thanks to the possibility of having virtual devices that can manage both input and output audio. Additionally, it is excellent that this eliminates the need to use cables. Loopback currently supports up to 64 input and 64 output channels, which is more than enough for most projects.
Although devices, connections and sources are managed visually, there are, unfortunately, a few drawbacks. For instance, you can not drag links to change routing paths or simply delete a connecting line.
In general, Loopback may have a lot of different uses. For instance, it can be a solution to tasks that require routing, mixing or recording audio from multiple sources or sharing audio signals between applications. Although this product can be tried at no cost, its price tag seems a little high.