White Noise
Constant power across all frequencies. Ideal for masking distracting speech.
FREQUENCY: HIGH
Work Timer
For the working day — fifty-minute blocks, a masked room, and a hard stop.
25:00
Ready
Nothing selected
Sound Library
Calibrated frequencies for deep work and relaxation.
Color Noises
Continuous frequencies for auditory masking.
Brown Noise
Deep, bass-heavy rumble reminiscent of a distant waterfall or thunder.
FREQUENCY: LOW
Pink Noise
Balanced spectrum that sounds more natural to the human ear, like steady rain.
FREQUENCY: BALANCED
Red Noise
Even deeper than Brown noise, focusing heavily on the low-end spectrum.
FREQUENCY: LOW
Black Noise
Near-silence with subtle low-frequency drift. Meditative, like the sound of a quiet room at night.
FREQUENCY: NEAR SILENT
Grey Noise
Psychoacoustically equalized to sound equally loud at every frequency.
FREQUENCY: EQUALIZED
Ambient Sounds
Natural soundscapes recorded in high fidelity.
Rain
Gentle rainfall creating a natural, soothing atmosphere perfect for deep concentration.
SOURCE: RECORDED
Rain on Tent
Rainfall on a tent canvas — cozy, immersive and deeply relaxing for focused work.
SOURCE: RECORDED
Ocean Waves
Rhythmic ocean waves rolling onto shore — a timeless natural soundscape for calm focus.
SOURCE: RECORDED
Wind
Steady breeze flowing through open spaces — airy and expansive for clear thinking.
SOURCE: RECORDED
Forest Stream
A gentle brook flowing through a quiet forest — peaceful and grounding for deep work.
SOURCE: RECORDED
Meadow
Birds and insects in a sunlit meadow — warm, organic ambience for relaxed focus.
SOURCE: RECORDED
Binaural Beats
Brainwave entrainment through stereo frequency offset. Layers with any noise above.
Headphones required for binaural effect
Delta
Deep sleep and healing. Ultra-low 2 Hz beat for total relaxation.
BEAT: 2 Hz
Theta
Meditation and creativity. 6 Hz beat for deep introspection and flow.
BEAT: 6 Hz
Alpha
Calm focus and learning. 10 Hz beat for relaxed concentration.
BEAT: 10 Hz
Beta
Active thinking and energy. 14 Hz beat for alertness and problem solving.
BEAT: 14 Hz
The interruption problem
Knowledge work has a specific failure mode: the task is fine, but nothing gets more than four minutes before something arrives. A message, a question, a notification, a meeting reminder. Each one is small; the cost is not the interruption but the reload afterwards, and the reload is where the time goes.
A timed block is a commitment that for the next fifty minutes nothing gets to interrupt. It is easier to hold than a vague intention to concentrate, because it has an end you can point at — including when you tell someone you will get back to them.
Why fifty minutes
Fifty minutes of work plus a ten-minute break makes exactly one hour, which means blocks line up with a calendar rather than fighting it. Three cycles is a morning with a clean boundary at each end, and booking a block against yourself in a shared calendar is a defence that other people can actually see.
Twenty-five works better for a list of small tasks. Fifty works better for the one thing on your list that actually matters, which is usually the one that keeps getting displaced.
Open-plan and working from home
In an office, the distraction is speech, and speech is best covered by white noise or grey noise because intelligibility depends on the frequencies they carry most. At home it is more often mechanical or intermittent — traffic, building work, a delivery — where brown noise and rain do better and are far less tiring over a full day.
Set it once in the morning and stop adjusting it. The Pomodoro timer can run the whole cycle including breaks if you would rather not reset anything between blocks.
Common questions
What is the best work block length?
Fifty minutes with a ten-minute break is the most practical for a working day, because each cycle takes exactly one hour and fits a calendar. Use twenty-five for a list of small tasks instead.
What should I play in an open-plan office?
White or grey noise. Speech intelligibility lives in the frequencies they carry most, so they cover conversation better than brown noise or rain do.
How do I stop being interrupted during a block?
Close the message client rather than muting it, put the phone out of reach, and if you share a calendar, book the block. A visible commitment is easier for other people to respect than an invisible one.