The Science of Sound
Binaural beats, breath, and an unbroken drone — built on measurable principles
Play a slightly different frequency in each ear, and the brain generates a rhythm equal to the difference — a binaural beat. Across EEG studies, this stimulus tends to raise alpha and theta activity linked to relaxation and focus. Every SUMMARU track lets you toggle this binaural layer on or off, so a pair of earphones is all you need to guide your state through sound.
Breathing about six times a minute, with a long exhale, raises heart-rate variability (HRV) and activates the parasympathetic system — shifting the body back into 'rest' mode. SUMMARU's breathing exercises, like 4-7-8 and box breathing, are built so this principle works simply by following the rhythm on screen.
A sound with no melody, no beat, and no swell never grabs the brain's attention. With no sudden change, the mind stops chasing the sound, while layered nature textures and noise cover surrounding disturbance to create an environment that's easy to fall asleep in. It's why every SUMMARU piece is a continuous drone with a frozen frequency spectrum.
Three layers of sound, flowing as one
A continuous drone fixed to one unique frequency per track — an unwavering floor of sound from the first second to the last.
A subtle frequency difference between your ears gently guides brainwaves toward a relaxed state. Turn it on with earphones, off through speakers.
Real field recordings and noise, layered to taste, to mask ambient sound and softly fill the space around you.
From 174Hz to 963Hz, each track is fixed to a single solfeggio frequency. The claim that a specific Hz heals a specific organ isn't scientifically established — but the experience of resting in one steady frequency is itself what gathers a scattered mind into one place.
The above is grounded in acoustic and neuroscience research on binaural beats, breathing, and sleep; effects vary from person to person. SUMMARU is not a medical device and is not a substitute for treatment.
Feeling comes before theory
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