White Noise for Studying: The Right Colour and Volume for Focus
Updated April 2026 · 8 min read
Quick recipes by task
| Task | Noise colour | Volume target | Filter |
|---|---|---|---|
| Deep writing or analysis | Brown | 45-55 dB | LP at 800-1200 Hz |
| Reading and comprehension | Pink | 40-50 dB | LP at 5000 Hz |
| Coding or structured work | Brown or white | 45-55 dB | LP at 2000-4000 Hz |
| Open-plan office masking | White | 50-60 dB | Flat (no filter) |
| Noisy cafe substitute | Pink or white | 50-60 dB | Light LP |
Open the focus preset and start a Pomodoro session.
Open Focus Preset →The stochastic resonance effect
The reason background noise helps some people focus is partly explained by stochastic resonance: a phenomenon where adding a specific amount of random noise to a signal can improve its detectability. Applied to cognition, background noise may bring certain neural processes to their optimal operating range.
Studies by Soderlund et al. (2010) found that individuals with lower baseline cognitive arousal (including those with ADHD) tend to benefit more from background noise during cognitive tasks than those with higher baseline arousal. This explains why the same background noise that helps one person focus distracts another.
For studying specifically, a 2012 meta-analysis in Applied Ergonomics found that moderate levels of ambient noise (approximately 70 dB, typical of a busy cafe) improved performance on creative tasks compared to silence or loud noise. The effect was smaller for tasks requiring precise working memory (like mathematics), suggesting that noise type and task type matter for the outcome.
Volume guidelines
For study use, 40-60 dB is the recommended range. This is:
- Loud enough to mask conversational background noise and building HVAC hum.
- Quiet enough to remain subconscious after the first few minutes.
- Below the threshold (85 dB for 8+ hours) at which occupational hearing-protection standards kick in.
If you need to run noise loud enough to cover a nearby conversation, you have a noise problem that noise cannot fully solve. Consider moving or using noise-cancelling headphones in conjunction with the generator.
Pomodoro sessions with the sleep timer
The Pomodoro Technique (25-minute focus blocks followed by 5-minute breaks) is widely used for sustained study. Our sleep timer can double as a Pomodoro timer: set it to 30 minutes, work for 25, and when the fade starts at 30 seconds you know your break window has begun.
For longer sessions, the 60 or 90-minute timer options work for two or three consecutive Pomodoro blocks. The fade-out provides a natural break cue without requiring you to glance at a clock.
Noise vs lo-fi vs silence: honest comparison
| Option | Pros | Cons | Best for |
|---|---|---|---|
| Brown or pink noise | No melody to follow, consistent energy, free | Can fatigue over very long sessions | Deep work, writing, analysis |
| Lo-fi music | Enjoyable, varied, huge Spotify/YouTube supply | Lyrics occasionally intrude; rhythm can distract | Moderate-intensity tasks, studying with familiar material |
| Silence | No auditory input at all | Environmental noise intrudes; many people find it anxiety-inducing | Very high-concentration tasks in a quiet room |
| Binaural beats | Some reported focus enhancement | Research is thin; headphones required; annoying to many | Experimentation; niche preference |