OLI — Frequency & Cymatics Lab

Planetary Earth year — OM

136.10Hz

NOTE C#3 PLATE 1 × 2 STAR {2/1} Exact math

Earth's orbital period, halved into the audible range — the traditional tanpura Sa.

Create your own sound

A fundamental plus partials. Whole-number ratios (2, 3, 4) give organ and string timbres; ratios in between give bells and bowls. What you hear is exactly what downloads — the preview plays the same render.

Fundamental Hz Waveform Length

Name

Frequency library

Every preset is labelled with what it actually is. Nothing here is a medical claim.

Measured physics Exact math Musical tradition Popular, unverified Chosen for feel

Use sensibly. Keep the volume low — sustained tones can damage hearing, and you cannot judge loudness reliably after a few minutes. Sub-audible rates (below ~20 Hz) are delivered as a binaural or isochronic beat, never as a raw tone, because a speaker cannot reproduce them. This is an instrument for generating and seeing sound, not a medical device — it does not diagnose or treat anything. If the moving pattern bothers you, switch the geometry off.