Focus session · B20
Peak Exam Cognition
Moves from Alpha to Beta — 12 Hz easing to 20 Hz over 4 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 rises from 12 Hz (Alpha) to 20 Hz (Beta), adding rhythmic definition as the ramp progresses. The authored target begins at 4 min and holds for 24 min.
Sustained focus
For focused work, the rhythmic structure is meant to act as a stable backdrop rather than compete with the task.
Give the transition room
Deep-work blocks, reading, writing, and tasks that benefit from a consistent sound field. Start quietly and let the ramp unfold instead of judging the session in its first minute. The target then holds for 24 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
- 12 Hz Alpha
- Beat target
- 20 Hz Beta
- Ramp
- 4 min
- Session length
- 28 minutes
Sound field
- Carrier
- 360 Hz
- Modulation
- Isochronic
- Modulation depth
- 0.7
- Envelope
- Sigmoidal
- Duty cycle
- 50% on
- Harmonic mix
- 10%
- Noise field
- Pink
- Spatial orbit
- 0.08 Hz one turn every 13s
Playback
- Delivery
- Isochronic, Monaural, Binaural or Poly-rhythmic
- Listening setup
- Speakers or headphones
Choose the spatial feel
This session starts in isochronic 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.
- Poly-rhythmic— needs stereo headphones
- Each ear gets its own carrier and its own beat, related by the golden ratio rather than driven in lockstep. Needs headphones — on a speaker the two channels sum and the distinction is lost.
New to these terms? Every row above, explained in plain language.
How this one is built
Steady mid-band work. Carriers sit in the comfortable speech range and the beat holds around SMR and low beta rather than drifting, so the field stays consistent across a long working block.
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. Binaural mode requires stereo headphones. Start quietly, and never use rhythmic audio while driving. Read the full safety notes.