What is a common purpose of using signal processing equipment in AV systems?

Using signal processing equipment in AV systems primarily serves to modify audio and video signals for better quality. This modification can involve various techniques such as equalization, compression, and filtering, which enhance the overall audio and video experience by improving clarity, balance, and performance. For example, an equalizer can be used to adjust specific frequencies to compensate for acoustic shortcomings in a room, while a video scaler can enhance image resolution for clearer viewing.

By enhancing the quality of the signals, signal processing equipment ensures that the final output meets the desired standards and expectations in terms of clarity and fidelity, resulting in a more enjoyable and effective presentation or performance. This aspect of signal processing is crucial in creating professional-grade AV experiences, where the quality of sound and visuals is paramount.