Pink noise is white noise, but with reduced higher frequencies. Similar to the way white light contains all the wavelengths of the visible spectrum at equal intensity, white noise has equal power across all frequencies audible to the human ear. White noise, probably the most familiar of these, sounds like a radio tuned to an unused frequency. Lots of studies on sound therapy have focused on specific sonic hues like white, pink, and brown, so what exactly is the difference between them? White noise works by masking these changes and allowing our brains the benefit of a more consistent sonic environment.Īside from the benefit of a better night’s sleep, white noise has shown promising results related to memory, tinnitus, and concentration (among many other things). The reason why noises wake us up at night is not exactly because of the noise itself, but rather the sudden change in noise. For better or worse, our brains continue to process sensory stimuli when we’re asleep, meaning that our partner’s snoring, dog’s barking, and even our leaky sinks can easily make us casualties of restless nights. If you’re someone who has trouble sleeping, somebody has probably already suggested white noise to you.
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