Brown Noise · Focus
Deep, steady brown noise, like a distant waterfall, as a backdrop that covers distractions while you work
Ready to try Brown Noise · Focus?
15 min free · Headphones recommended
What is brown noise?
Brown noise puts even more of its energy in the low end than pink noise, so it sounds like a deep rumble. It has not been studied on its own: a 2024 review of noise and attention (Nigg et al.) found no studies of brown noise. For white and pink noise, that review found a small benefit on attention tasks for young people with attention difficulties and a small cost for everyone else, echoing an earlier study (Söderlund et al., 2007). People use brown noise as a steady sound that covers distractions; whether it helps you focus is something to notice for yourself.
Proposed mechanism
A steady low-frequency sound masks irregular background noise. The studies listed tested white and pink noise, not brown noise.
What people listen for
These are the effects people associate with brown noise. No study has tested them for this sound, so read them as ideas to explore, not as findings.
Who is this for?
People often choose brown noise for:
Experience it yourself
Reading about a frequency is one thing. Feeling it is another.
The science behind brown noise
Brainwave entrainment is the idea that the brain’s electrical activity can fall into step with a steady rhythm you hear. A related response, the Frequency Following Response (FFR), can be measured with EEG.
For brown noise, no study has tested the specific effects described on this page. The papers below are background on sound and the brain, not evidence for this sound.
Published Research
How to use Brown Noise · Focus
Suggested session
25-45 minutes while you work, at a low volume. If it makes focusing harder, switch it off. Individual experiences may vary
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Use headphones
Over-ear or in-ear, at a low volume. They keep the tone clear without turning it up.
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Find a quiet space
A calm room makes it easier to settle in and notice how you feel.
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Be consistent
A short session every day is easier to keep. Notice how you feel and adjust.
Safety information
Listening to frequencies is generally considered safe for most adults. However, certain conditions require caution. Consult a healthcare professional before use if any of the following apply:
- ⚠If you are pregnant, use an implanted device, or a clinician is already caring for you, talk with them before listening
- ⚠Stop if you feel dizzy or distressed
- ⚠This is a wellness tool, not a medical device
This information is for educational purposes only. Freqium is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease.
When Science Listens to Sound
Dr. Tamara Goldsby
Researcher, Department of Family Medicine · University of California San Diego
Study summaryAn observational study of a single singing-bowl meditation session, without a control group.
In 2017, Tamara Goldsby and colleagues at UC San Diego asked 62 adults to rate how they felt before and after a one-hour sound meditation with singing bowls, gongs and bells.
After the session, participants reported feeling less tense and more at ease on standard mood questionnaires.
The study had no control group, so it cannot say how much of the change came from the sound itself rather than resting quietly for an hour.
We share it as an honest picture of where sound-meditation research is: promising, early, and worth trying for yourself.
Self-reported tension
Lower
After one session, 62 participants, no control group (observational)
Sound meditation is being studied seriously — and you can try it tonight.
Effects of Singing Bowl Sound Meditation on Mood, Tension, and Well-being. Journal of Evidence-Based Integrative Medicine, Vol. 22, Issue 3
Now you know the science. Feel it for yourself.
Experience 0.1 HzHear brown noise for yourself.
You’ve read what is known and what isn’t. Put on headphones and notice how Brown Noise · Focus feels to you.
Start 45-Minute Session15 min free · Headphones recommended