What is an AV matrix switcher used for?

An AV matrix switcher is primarily used to route multiple audio and video sources to different outputs, making it a critical component in complex audiovisual setups. This device allows operators to select various audio and video sources, such as cameras, microphones, or computers, and send them to different destinations like displays, speakers, or recording devices.

This functionality is essential in environments where different outputs need to receive specific input signals simultaneously. For example, a conference room may require a video feed from a presentation laptop to be displayed on one screen while simultaneously sending the audio feed to a separate room for participants who are not physically present. The matrix switcher facilitates this by providing the flexibility to control the routing of signals efficiently without the need for excessive cabling or manual reconnections.

In contrast, other options do not capture the primary function of an AV matrix switcher. While connecting multiple microphones, adjusting sound levels, and combining audio and video into a single signal are related to audio and video systems, they do not encompass the core purpose of the matrix switcher, which is specifically about routing multiple sources to the right outputs.