Which of the following are typical components of an AV control system?

The correct choice identifies essential components of an AV control system, which comprises three primary categories: sources, processing, and output devices.

Sources refer to any devices that provide content to be displayed or amplified, such as computers, cameras, or media players. Processing involves the manipulation and management of the audio and video signals, which can include devices like AV receivers, switchers, or encoders. Output devices are the end products that deliver the audio and visual signals to the audience, including displays, projectors, or speakers.

Together, these elements work in a cohesive manner to create an integrated AV experience. A well-designed AV control system will also include control interfaces (like remote controls or touch panels) to manage these components effectively.

The other options mention components that are commonly found in AV systems, but they do not comprehensively represent the typical structure of an AV control system as directly. For instance, while speakers and microphones are vital, they fall under specific categories rather than encapsulating the full operational workflow that sources, processing, and output devices cover. Similarly, mixing consoles and amplifiers are part of the processing and output stages but don't encompass the whole system layout as explicitly as the source-processing-output model does.