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Pink noise generator for focus
Pink noise has equal energy in every octave, so each doubling of pitch carries the same power. According to the Colors of noise overview, it loses about 3 dB per octave compared with white noise, which makes it sound softer and more balanced, closer to steady rain or wind. Because human hearing works in octaves, audio engineers use pink noise as a reference signal. It is also called 1/f noise.
Live in your browser
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Pink noise
Even across octaves. Warmer than white, brighter than brown.
Generated live in your browser. Start low and raise it until the room blurs.
Pair it with the 25/5 Pomodoro timer
Pink noise is a good all-rounder for classic 25/5 Pomodoros: steady enough to cover the room, soft enough to leave on.
Focus
25:00
Then a 5 min break
What the evidence says
Honest summary: pink noise is one of the two noises studied for attention. A 2024 meta-analysis of 13 studies found a small benefit of white or pink noise on lab tasks for young people with ADHD or many ADHD symptoms, a small negative effect for those without, moderate certainty and no long-term data (Nigg et al. 2024). So for most people, pink noise is a way to cover room noise, not a way to perform better.
How to use it with a timer
- Press play at a low volume.
- Start a 25/5 timer. Keep the noise on during work and off during breaks.
- After a few sessions, try one without noise and compare what you finished.
Keep it quiet. According to the NIDCD, sound at or below 70 dBA is unlikely to cause hearing loss; long or repeated exposure at 85 dBA or more can (NIDCD). A good rule: you should still be able to hear someone speaking at normal volume next to you.
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About pink noise. Missing something? Write to [email protected].
For young people with ADHD symptoms, the 2024 meta-analysis by Nigg and colleagues found a small benefit on lab tasks; for those without, a small negative effect. Try it: if it helps you ignore the room, use it; if you notice it, turn it off.
Like steady rain or wind: softer than the hiss of white noise, brighter than the rumble of brown noise.
Yes. Its power falls in proportion to 1/frequency, which is why it has equal energy in each octave.