white noise
"White noise" is a sound that contains all audible frequencies at equal intensity, often used to mask other noises or aid in relaxation.
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Definition
C1Sound Engineering
(technical, scientific)A random signal with equal power across all frequencies, creating a consistent and unvarying sound.
Example
- Engineers use white noise to test audio equipment.
- The white noise generator helped mask the background sounds in the recording studio.
B2Everyday Life
(nontechnical)A steady sound that includes all frequencies, often used to drown out other noises and improve focus or sleep.
Example
- Many people use white noise machines to help them sleep better.
- The sound of a fan is often considered a form of white noise.
C1Communication
(figurative)Speech or information that is ignored or goes uncomprehended.
Example
- His complaints were just white noise to the busy manager.
- In the crowded room, her voice was lost in the white noise of conversation.
Similar
Terms that have similar or relatively close meanings to "white noise":