10 Hz — The 11-Minute Reset · Calm focus
You'll hear a soft, steady tone. That's it — the 10Hz happens inside.
Keep the volume low. Not while driving. If you have epilepsy, a pacemaker or a cochlear implant, ask your doctor first.
Two tones in, one beat your brain makes
Each ear gets its own steady tone. Neither ear hears 10 Hz — the beat only exists once your brain puts the two together.
Three steps, eleven minutes
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Put on stereo headphones
Each ear has to hear a different tone. Speakers blend the two channels together, so the beat never forms.
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Press play
The tone is generated live in your browser. Nothing to download, nothing to sign up for.
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Stay with it for 11 minutes
That is the window in which the synchronization settles. You can stop at any point.
Before you press play
What is a binaural beat?
Why 10 Hz?
What happens in the brain?
Can it help with anxiety?
What should I feel?
Not a cure.
A dimmer switch.
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Small studies · modest effects
The clearest effect is the nervous system, not memory or focus.
Across binaural-beat research, the clearest, most consistent effect isn't cognitive — it's the nervous system. Several studies report lower self-rated anxiety, and some report lower pain ratings — effects that show up more consistently than any effect on memory or focus. The studies are small and the effects are modest. It doesn't numb sensation or heal tissue. It turns down the volume on your body's alarm system — the same pathway a slow exhale works through, just held there longer and more consistently than a breath alone can manage.
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History · not evidence
Research inspiration · Declassified 1983, released 2003
In 1983, the US Army commissioned a classified analysis of The Monroe Institute's research into binaural frequencies and altered consciousness. The document — Analysis and Assessment of Gateway Process — was declassified and released by the CIA in 2003.
It describes binaural beats as a way to shift brainwave activity and quiet cortical noise. This experience is inspired by that document — read it as a piece of history and a starting point for curiosity, not as evidence. The peer-reviewed research above is the part to weigh.
Not affiliated with or endorsed by any government body. View the declassified CIA document →
Research findings, not medical claims. If you're managing chronic pain or an anxiety condition, this is a complement to care — not a replacement. Read the full disclaimer.
The 11-minute threshold
Research on neural entrainment suggests that 7–15 minutes is the window in which brainwave synchronization stabilizes. We chose 11 minutes because it sits inside that window with room to settle — long enough to stop checking the clock, short enough to actually do. It is a design choice, not a clinical threshold.
ECHO.11 is a self-care tool, not a medical device, and nothing here is medical advice. Do not listen while driving. If you have epilepsy or a seizure disorder, or you are fitted with a pacemaker or a cochlear implant, check with your doctor before using audio entrainment of any kind. This is not a crisis service: if you are in danger or thinking about harming yourself, contact your local emergency number or a crisis line right away.
Read the full disclaimer
The 10Hz session is not a diagnosis, a treatment, or a substitute for care from a doctor, therapist, or psychiatrist. If anxiety, pain, or sleeplessness is disrupting your life, please talk to someone qualified — this can sit alongside that work, but it does not replace it.
Response varies from person to person, and some people notice nothing at all. That is a normal outcome, not a failure on your part.
A few practical limits. Do not listen while driving or operating anything that needs your attention — the session is built for stillness with your eyes closed. Keep the volume low; the effect comes from the frequency, not the loudness. If a session leaves you dizzy, disoriented, or more agitated than when you started, stop and take the headphones off.
The research described on this page is drawn from published work on binaural beats and neural entrainment. It reports what studies have observed in general — not what will happen to you, and no efficacy figures are claimed for this specific recording.
