Frontier session · G13
Summed Tone Descent
Moves from Alpha to Delta — 12 Hz easing to 4 Hz over 12 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 12 Hz (Alpha) to 4 Hz (Delta), so its rhythmic emphasis becomes less rapid over the ramp. The authored target begins at 12 min and holds for 18 min.
Exploratory listening
These sessions foreground the engine’s less conventional behaviors so you can hear how the signal design changes the experience.
Give the transition room
Comparing unusual trajectories, delivery modes, envelopes, and modulation techniques. Start quietly and let the ramp unfold instead of judging the session in its first minute. The target then holds for 18 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
- 4 Hz Delta
- Ramp
- 12 min
- Session length
- 30 minutes
Sound field
- Carrier
- 320 Hz
- Modulation
- Monaural
- Noise field
- Dark Pink
- Spatial orbit
- 0.02 Hz one turn every 50s
Playback
- Delivery
- Monaural, Binaural or Poly-rhythmic
- Listening setup
- Speakers or headphones
Choose the spatial feel
This session starts in monaural 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.
- 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
The collection that exercises the parts of the engine nothing else reaches. Native binaural, monaural and poly-rhythmic sessions rather than isochronic ones with alternatives, alongside multi-waypoint beat curves and the only duty cycles in the catalog that are not 50%. Organized by technique rather than by outcome, which is why the bands range from 1.5 Hz to 22 Hz inside one collection.
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.