What is a key feature of an AV switcher?

A key feature of an AV switcher is its ability to route different audio and video signals to the desired output. This function is essential in any AV setup where multiple sources, such as computers, cameras, or other media devices, need to be directed to a single display or projector. The switcher's primary role is to manage these inputs efficiently, allowing the user to select which source they wish to display without physically disconnecting or changing cables. It simplifies the management of various AV devices in a seamless manner, making it easier to control presentations, video conferencing, or broadcasting.

In contrast, enhancing audio fidelity is more relevant to audio processors or equalizers rather than switchers. Connecting multiple audio sources exclusively focuses only on audio and does not encompass the AV capabilities of the switcher that accommodate both video and audio. Converting video formats involves a different technology typically associated with video converters or scalers, which transform video signals into different resolutions or formats. Thus, the primary function of an AV switcher as a routing device distinguishes it clearly from these other roles.