What is pink noise?
Pink noise reduces power by 3 decibels per octave as frequency rises — a gentler roll-off than brown noise. The result is equal energy per octave, which matches how human hearing is organised, so pink noise sounds natural and balanced rather than bright or boomy.
Many natural sounds — rainfall, rustling leaves, ocean surf, a steady heartbeat — have a roughly pink spectrum, which is part of why it feels so soothing.
Benefits of pink noise
Beyond general masking, pink noise has drawn scientific attention for sleep. Studies using pink noise timed to brain waves have reported increases in deep sleep and next-day memory recall in some participants. While more research is needed, the balanced sound is comfortable for all-night listening.
- Deep sleep: linked in research to more slow-wave (deep) sleep.
- Memory & studying: a calm, even backdrop for reading and revision.
- Relaxation: natural, rain-like character that is easy on the ears.
- Babies: gentler than white noise while still masking household sounds.
How to use the pink noise player
Press play and keep the volume gentle — pink noise is meant to sit softly in the background. Use the Tone slider to nudge it warmer or brighter, enable Waves for a rain-like ebb and flow, and set a Sleep Timer to fade out after you drift off.