SCHUMANN ENTRAINMENT — MEASURED, NOT INVENTED
EarthTune tracks the ionosphere’s measured fundamental as it drifts, then glides binaural and isochronic audio to follow it. The number always arrives with its age. If the stations go quiet, the app says so and rides Offline Anchor — a trailing average of the observations it has, labeled as such.
// WHAT IT IS
Competitors ship a frozen 7.83 Hz. EarthTune reads public ELF observatory spectrograms, picks the fundamental, and shows Tomsk • 7.88 Hz • 12 min ago. Audio glides between updates. The word “live” is not in the product.
Every reading carries its station and how old it is. Stale data is labeled stale. Modeled data is labeled modeled, with an uncertainty band.
Headphones for binaural beats. Speakers work for isochronic. Carriers are 200 Hz, 432 Hz, or pink noise. The beat follows measured f₀ — never a fixed poster number.
If every station is older than 90 minutes, sessions ride a trailing average of the available observation history and the HUD says so. Before any observation arrives, the app uses a typical 7.83 Hz reference labeled “not measured.” No fake freshness.
The orb breathes on a 4-second cycle. Session pulse lives in audio only. Photosensitivity copy ships even though the visuals are flicker-free by design.
// PRIVATE BY DESIGN
Observatory spectrograms are processed on our server; the app automatically fetches the resulting numbers and recent history from our anonymous, read-only feed. Your sessions, presets, and Local Field readout never leave the device. The privacy policy is the whole story, including what the feed server logs.
