pw-loopback

The command line tool "pw-loopback" is a utility that creates a virtual loopback audio device on your computer. It is primarily used to route audio between different applications or devices on the same computer.

With pw-loopback, you can create virtual audio inputs and outputs which behave like real physical devices. These loopback devices can be used to record audio from one application and play it back in another, or to route audio between different applications for processing or monitoring purposes.

The tool allows you to customize the number of input and output channels, sample rates, and buffer sizes for the loopback devices. It utilizes the PulseAudio sound server, which enables flexible audio routing and control on Linux-based systems.

By providing a convenient and efficient way to route audio within your computer, pw-loopback enhances the versatility and functionality of your audio setup. It is particularly useful for audio professionals, developers, and enthusiasts who require complex audio setups and application integration.