Eydís Evensen · Icelandic pianist & composer
Sound affects the brain. That's not a claim —
it's decades of research.
Binaural beats, brown noise, therapeutic frequencies — each one designed to do a specific thing, and do it well.
Two tones at slightly different frequencies — one per ear — create a perceived beat at the difference. Theta (4–8 Hz) supports relaxation and creativity; gamma (40 Hz) correlates with focused cognition. Requires headphones. Effect is subtle but measurable.
binaural beats & EEG · replicated, effect sizes varyIts 1/f² power spectrum closely mirrors the brain's own noise floor — masking distraction without adding mental effort. Preferred over white noise by many for sustained concentration.
brown / pink noise & attention · helps many, evidence growingPacing the breath to around six cycles per minute stimulates the vagus nerve and shifts the autonomic nervous system toward rest. One of the most robustly supported interventions we use.
paced breathing & HRV · well supportedDeep oscillations below 80 Hz are felt as much as heard. Sustained sub-bass resonance is associated with reduced arousal and a sense of physical calm — used in clinical sound therapy.
infrasound & therapeutic vibration · emerging evidence40 Hz auditory stimulation — the gamma frequency — has been studied for its role in neural synchrony and sustained attention. Research is active; results are promising.
40 Hz entrainment & cognition · promising, more research neededThe brain responds to consistent sound environments over time. A daily practice builds a stronger conditioned response — the tool becomes a reliable signal to shift state.
habituation & conditioned relaxation · well establishedEvery tool is grounded in research and designed by AI for accuracy — so you get the right frequency, the right beat, at the right intensity. Open one. Let it work.