Meditation session · L20
Two Time Signatures
Moves from Theta to Delta — 7 Hz easing to 3 Hz over 14 minutes.
Choose the full transition or begin at the advertised audio target. You can scrub and extend either path in the player.
Frequency journey
How the rhythmic pulse embedded in the sound changes from the opening moments to its destination.
The embedded pulse gradually slows from 7 Hz (Theta) to 3 Hz (Delta), so its rhythmic emphasis becomes less rapid over the ramp. The authored target begins at 14 min and holds for 11 min.
Meditative attention
For meditation, the sound is designed to offer a spacious, repeatable point of return for attention.
Give the transition room
Seated practice, breath awareness, body scans, and quiet reflection. Start quietly and let the ramp unfold instead of judging the session in its first minute. The target then holds for 11 min by design. You can also start directly at the target, scrub the journey, or extend the hold in the player.
Signal, not a scan. The line shows the modulation rate generated in the audio. It is not an EEG reading and does not promise that brain activity will follow the curve. Listening responses vary.
Signal specification
Every audible behavior is published. The values below describe the sound engine—not a biological dose or guaranteed effect.
Journey
- Beat start
- 7 Hz Theta
- Beat target
- 3 Hz Delta
- Ramp
- 14 min
- Session length
- 24 minutes
Sound field
- Carrier
- 380 Hz
- Modulation
- Poly-rhythmic
- Modulation depth
- 0.92
- Envelope
- Smooth bell
- Duty cycle
- 50% on
- Noise field
- Deep Pink
- Spatial orbit
- 0.04 Hz one turn every 25s
Playback
- Delivery
- Poly-rhythmic, Monaural or Binaural
- Listening setup
- Stereo headphones — the beat is built across your two ears
Choose the spatial feel
This session starts in poly-rhythmic mode. You can change how the beat is delivered without changing the frequency journey, or add a Shepard-Risset carrier drift for a continuously falling timbre.
- Monaural
- Two tones summed before they reach you, so the beat exists in the air rather than being built in your head. Smoother and less percussive than isochronic, and it works on speakers.
- Binaural— needs stereo headphones
- Two carriers a few hertz apart, one per ear. The beat is constructed in your brainstem, so it needs stereo headphones to exist at all.
New to these terms? Every row above, explained in plain language.
How this one is built
Poly-rhythmic — each ear on its own carrier and its own beat, related by the golden ratio rather than driven together. Carriers stay under 640 Hz so the right channel, multiplied by 1.481, remains inside the usable range. Headphones required.
Listen responsibly
Brainwavest is a wellness and relaxation tool, not a medical device. Session names and guidance describe design intent, not a promised physiological result. This session’s poly-rhythmic delivery requires stereo headphones. Start quietly, and never use rhythmic audio while driving. Read the full safety notes.