What pink noise is
Pink noise is random sound with equal energy in every octave, so each step up in pitch gets a little quieter (about 3 dB per octave). To our ears it sounds balanced: closer to steady rain, wind in leaves or a waterfall than to the bright hiss of white noise.
It sits between white noise and brown noise, which drops off twice as steeply and sounds deeper. Audio engineers use pink noise to tune speakers because it matches how we perceive loudness across the range.
Pink noise for focus and sleep
As a background for work, pink noise masks distracting sounds while staying gentle enough for long sessions. Many people who find white noise too sharp settle on pink.
It has also been studied in sleep research. In some laboratory studies, short bursts of pink noise timed to the slow waves of deep sleep were linked to better memory the next day. Those experiments used precisely timed sound, not a continuous track, so they don’t show that leaving pink noise on all night will do the same, but they help explain the interest.
Ways to use it
- Use it as a neutral bed under rain sounds or a café to smooth out quiet gaps.
- Keep it on through a Pomodoro session and pause it during breaks, so silence marks your rest.
- At night, set a low volume and a timer so it fades out after you fall asleep.
Like the other noises in Focuship, pink noise is generated on your device with a seamless loop and works offline.
Questions
- Is pink noise better than white noise?
- It is softer, which many people prefer for long sessions and sleep. White noise masks speech a little more strongly. Try both at the same low volume.
- Does pink noise improve sleep?
- Some lab studies link precisely timed pink noise during deep sleep to better memory, but evidence for ordinary all-night playback is limited. If it helps you fall asleep, that is reason enough to use it.
- Can I mix pink noise with other sounds?
- Yes. Add rain, wind, a café or a fireplace from the Sounds tab; each layer has its own volume.