Background limits refer to the maximum levels of background noise or interference that can be tolerated in a given environment without affecting the quality of a primary signal or activity. These limits are crucial in various fields, such as telecommunications, where clear communication is essential, and in audio engineering, where sound quality is paramount. In practical terms, background limits help determine acceptable noise levels in settings like recording studios or office spaces. By establishing these thresholds, professionals can create optimal conditions for work or communication, ensuring that the primary signals remain clear and effective despite the presence of background sounds.