6 Hz binaural beats
The middle of theta, and the rate most people mean when they say “theta”. Fast enough to follow if you want to, slow enough to ignore if you do not.
6 Hz sits in the centre of the theta band (4–8 Hz) and is the most-used single rate for meditation and winding down. At six cycles per second the beat is clearly perceptible as a sway between the ears without demanding attention, which is the balance most sitting practice wants.
Why theta gets used for sitting
The band is named after an EEG rhythm associated with drowsiness and the drift between waking and sleep, and that association is what put it in every meditation preset. Worth being precise about what that means: the naming comes from measurement of brain activity, not from a demonstration that a 6 Hz sound produces the same state. It is a reasonable place to start and not a claim.
How it differs from its neighbours
| Rate | Feels like | Better for |
|---|---|---|
| 4 Hz | Breathing-paced swell | Naps, very long sits |
| 6 Hz | A steady sway you can follow or ignore | Meditation, wind-down, reading |
| 8 Hz | A soft pulse, slightly forward | Light focus |
| 10 Hz | A clear pulse | Calm work |
Carrier choice matters more than you would think
At 6 Hz the carrier changes the character of the session more than the beat does. 136.1 Hz is warm and low — the tone the meditation page defaults to. 150–200 Hz is more present and easier to hear over a room. Above 400 Hz the beat starts to lose definition. The slider is right there; two minutes of moving it tells you more than any table.
Layering
A bare 6 Hz beat is quite exposed. Green noise underneath turns it into something closer to ambience — that is the third preset, and it is the setting most people end up leaving running. If a room is noisy, pink covers more.
Questions
What is 6 Hz binaural beats used for?
Meditation, winding down before sleep, and long low-intensity sessions. It is the default theta rate on most players including this one.
Is 6 Hz better than 7 Hz or 5 Hz?
No evidence supports one rate over its neighbours. The differences you can actually hear are small; pick the one that is comfortable and keep it.
Do binaural beats at 6 Hz make you sleepy?
Some people find slow beats relaxing. If your aim is sleep rather than sitting, a slower rate with a noise bed is the usual choice — see the sleep player.
How long should a 6 Hz session be?
20 minutes is the common sitting length; 45–90 minutes works as background. There is no session limit here.
Running this on a phone? The Brainwave Generator app keeps playing with the screen off, works without a connection, and carries the same engine. Free on iOS and Android.