How is noise defined in the context of aviation?

In the context of aviation, noise is defined as unwanted sound. This definition emphasizes that noise is not just any sound but specifically refers to sounds that are disruptive or undesirable, often affecting communication, comfort, and overall operational efficiency. In aviation, noise can originate from various sources such as engines, airframe interactions, or even cabin equipment, and is often considered a significant factor in both pilot performance and passenger comfort.

Understanding noise as unwanted sound is crucial because it underlines the importance of managing it effectively, particularly in areas close to airports or in flight paths, where it can have an impact on communities and individuals living nearby. This definition draws attention away from other factors like decibel levels or necessary sound for communication, focusing instead on the subjective experience of sound quality and the implications for safety and environmental considerations in aviation.