Navigate modes below to read their documentation.
When two slightly different tones are played into each ear — say, 200 Hz in the left and 206 Hz in the right — the brain perceives a rhythmic pulsing at the difference: 6 Hz. This isn't an acoustic phenomenon; it happens entirely inside the brain's auditory processing. Research suggests these perceived pulses can gently guide brainwave activity toward matching frequencies, a process called entrainment. The effect is subtle and cumulative — not a switch, but a gentle lean in a direction.
Binaural beats only work with headphones. Speakers mix the two channels in the air before they reach your ears, canceling the effect entirely.
The beat frequency is the difference between the two tones — the actual pulse the brain perceives. Set it to match the mental state you want to encourage.
Deep, dreamless sleep. The brain's slowest rhythm — restorative, deeply unconscious. Useful for sleep induction or very deep meditation.
The edge of sleep — vivid imagery, creativity, the hypnagogic state just before unconsciousness. Strong for meditation and daydreaming.
Relaxed alertness. Calm but aware. Good for stress relief, light focus, and the quiet after meditation.
Active, alert, engaged. Normal waking consciousness and concentrated thought. Use for focus, productivity, and problem-solving.
Peak cognitive performance. Associated with intense focus and information binding across the brain. High-effort mental states.
The base pitch of the tones, before the beat difference is applied. It doesn't affect the entrainment frequency, but it does affect comfort. Lower carriers (150–220 Hz) feel warmer, less fatiguing, and blend better with low-frequency noise like brown noise. Higher carriers (300–400 Hz) feel brighter and cut through more clearly. For sleep, stay below 200 Hz.
The three noise types create a continuous background layer that masks distracting sounds and gives the binaural beats something to sit against.
White Noise
All frequencies at equal intensity — a sharp, hissing sound. Very effective at masking but fatiguing over long sessions. Use sparingly, or not at all for sleep.
Pink Noise
Lower frequencies are louder, rolling off gradually upward. Sounds like steady rainfall or a gentle stream. More natural and less fatiguing than white noise. A good general-purpose background.
Brown Noise
Even heavier emphasis on bass frequencies. Deep, rumbling — like ocean waves, distant thunder, or a very large fan. Very restful, particularly for sleep.
The − and + buttons at the top of the Soundscapes section scale all three noise levels together proportionally, so you can raise or lower the overall noise floor without disturbing the balance you've set between them.
A slow oscillator gently sweeps the noise around your head using binaural HRTF processing. At low intensity the movement is barely perceptible — more like a living, breathing environment than a noticeable sweep. At higher intensity the motion becomes more pronounced. For sleep, keep this low or off. For active focus, a moderate level can help maintain presence.
Two bowls play together at all times. Neither is primary. They find their harmonic relationship from within the chosen experience and move through a progression of intervals — slowly, without announcement — over the course of a session.
Silence is rare. One bowl is always still ringing when the other begins. The transitions happen inside the sound, not in the gaps between sounds. When the harmonic relationship shifts, the listener may not notice it consciously — they only feel that something has moved.
Each bowl blooms over roughly half a second, reaches full voice, then releases slowly — sometimes over a minute. The decay is long and gentle by design. Your nervous system has time to follow the sound all the way down toward stillness.
Each experience sets all the bowl parameters at once — frequency, ring duration, pace, and harmonic arc. You can adjust the sliders after selecting one.
Drift
For floating away or falling asleep. Uses wide, open intervals — octave and fifth — that feel spacious and unresolved. Very slow transitions. The pace is set very low by default; the experience is long, unhurried, and spacious.
Ground
For anxiety, restlessness, or mental chatter. The harmonic intervals — fifth and fourth — are foundational and stable. Good when you need something to hold onto. Default experience.
Warm
For comfort, sadness, or needing to feel held. The arc drifts from open intervals toward thirds — warmer, more tender — then returns. Good for emotional settling.
Journey
For longer meditation sessions. The complete arc: beginning with the most open and consonant intervals, moving through richer and more complex combinations in the middle, returning to simplicity near the end. The most variety of any experience.
How long each bowl resonates after it is struck. The display shows the approximate duration in real time.
At short settings the sounds decay quickly, the room feels lighter, and there is more variation in the experience. At long settings — a minute or more — the bowls sustain deeply, overlap richly, and the experience becomes more continuous and immersive. Most people find a ring of 30–90 seconds deeply relaxing.
How often any transition occurs — not the rate of strikes, but the density of change. At Still, long periods pass where the same harmonization sustains unchanged. At Flowing, the intervals shift more frequently, though always gently. Both ends of the range are deeply relaxed.
The display shows approximately how many seconds pass between bowl entries, which helps calibrate the pace to your environment and attention.
The root pitch of the session. The second bowl always sounds a harmonic interval above the first; the interval is determined by the experience arc. As you move the frequency slider, the chakra badge updates to show the traditional correspondence — C for root, D for sacral, and so on up to B for crown.
These correspondences are traditional rather than physiological. The frequency you choose will affect the timbre and weight of the sound — lower frequencies feel more grounded, higher ones more crystalline.
This mode will simulate ASMR-style binaural ear care — ear picks, cotton swabs, soft brushes, and puffs of air moving closely around the listener's head, positioned via HRTF spatial audio.
Producing organic, granular textures that trigger the ASMR response requires either recorded audio samples or a level of synthesis complexity not yet implemented. The mode will arrive in a future update.
In the meantime, the Nearfield mode (🫧) offers a gentler, synthesized near-ear experience.
Nearfield creates the sensation of gentle sounds occurring very close to your ears — not coming from any particular direction, but near. The sounds are positioned using HRTF binaural processing, so each event feels like it originates in a specific place around the ear rather than inside your head.
It is inspired by the experience of gentle near-ear attention — a soft stroke, a brief puff of air, the quiet crinkle of something close. It is not a medical simulation. A dedicated Ear Care mode may be added in a future version.
Each gesture is positioned near one ear — left or right, chosen at random — and sounds never sweep dramatically across from side to side. The 3D impression comes from HRTF processing: the subtle spectral coloring that occurs when sound reaches your ears from different angles and distances.
A warm, low-frequency sweep tracing an arc around one ear — from above-front to below-behind, or some variation. Soft and lingering, like a fingertip or a soft brush. The warmth comes from its low-pass character: it carries only the lower frequencies of the noise source.
A brief, airy burst near the ear canal. High-pass filtered — only the upper frequencies — giving it an airy, almost electric quality. Short, punchy, and clearly distinct from the other elements. Its duration is fixed and not affected by the Duration slider.
A crisp, high-frequency texture centered around 5.8 kHz, drifting slowly. Longer than a puff, sustained like a stroke, but spectrally bright — like hair or fabric shifting close by. Positioned slightly further from the head than the other elements for a clearer HRTF impression.
Very brief micro-pops, each only a few milliseconds, occurring several times per second. The primary ongoing texture of the mode — a subtle, continuous aliveness. Crackle runs at its own fixed rate; neither the Pace nor the Duration slider affects it. Its level slider extends above 100% because this element is intentionally prominent.
Effect Levels (Stroke / Puff / Rustle / Crackle)
Each element has its own level slider. Crackle defaults higher than the others and its slider extends past 100% — this is intentional. The crackle is the dominant texture; set the others to taste around it.
Pace
Controls the time between the end of one stroke, puff, or rustle event and the beginning of the next of that same type. Crackle runs at its own fixed rate and is not affected by this slider.
Duration
Controls how long strokes and rustles last. At the minimum, events are brief (about 1.5–3 s); at the maximum, long and sustained up to 15 s. The display shows the approximate stroke duration at the current slider position.
Puff is always short (0.35–0.8 s) regardless of this slider — its brevity is part of its character. Crackle is sub-millisecond and also unaffected.
Volume
The master output for this mode. Always starts at 15% when you switch to Nearfield — bring it up gradually.
🫧 Cocoon
Subtle, slow, enveloping. All gesture levels are low; crackle is present but quiet. Events arrive rarely. For deep relaxation or sleep accompaniment.
🌙 Night Presence
More active, more present. Higher gesture levels and a faster pace. Crackle is noticeably more prominent. For a more engaging near-ear experience.
All modes work best with stereo headphones • Volume always starts at 15% when switching modes • Settings save automatically