Which sound type includes everyday noise from facility usage?

The correct answer is background noise. This type of sound encompasses the ambient noise generated from various activities within a facility, such as conversations, footsteps, and machinery operating, among others. Background noise can significantly affect the overall experience of individuals using the facility, impacting communication, concentration, and enjoyment.

Operational sounds refer specifically to noises associated with the functioning and maintenance of the facility, which may not capture the everyday usage sounds that patrons experience. Gear noise pertains to the sounds produced by fitness equipment or sports gear, typically heard during specific activities or exercises. Air-borne sounds involve noises transmitted through the air, which can include things like music or announcements but do not fully address the broader spectrum of typical facility usage noise.

In contrast, background noise gives a comprehensive picture of the daily soundscape within a sports facility, making it the most fitting choice.