英语释义
1. a heterogeneous mixture of sound waves extending over a wide frequency range — compare pink noise
2. a constant background noise especially one that drowns out other sounds
3. meaningless or distracting commotion, hubbub, or chatter
the white noise of policy and politics in America
— Joseph Nocera
4. a heterogeneous mixture of sound waves extending over a wide frequency range that has been used to mask out unwanted noise interfering with sleep — called also white sound