What is the most efficient way to produce “white noise” with common household items?
White Noise is random energy with equal power distribution across the spectrum in which it’s being considered. White light, for example, is an even distribution of all the colors in the visual spectrum. Probably you’re thinking of Pink Noise, which is the random, equal energy distribution across the audio spectrum. Colloquially referred to as Static. An untuned analog radio or TV station will provide as good source. Rushing water has similar properties, which is why some homes have a waterfall ornament to create a soothing effect. The equal distribution of energy desensitizes the hearing to occasional sound changes in the environment.
