You can start by describing the type and volume of the noise. For example, a loud thunderclap or a soft rustling of leaves. Make it relevant to the scene or the character's emotions.
White Noise is typically classified as a postmodern novel. It incorporates diverse narrative techniques, explores themes of consumerism and media saturation, and defies straightforward categorization found in modernistic works.
The White Noise novel is usually about the struggle to find meaning and stability in a world filled with sensory overload and uncertainty. It could have characters trying to make sense of a reality that seems increasingly hard to define.