Frequency
728 Hz
Bright Field
Explore this frequency
Anecdotal / exploratory
What it is
A 728 Hz sine tone in the upper-mid register.
What users may experience
Bright and present; most listeners prefer it quiet and short.
Traditional associations
Appears in exploratory frequency sets circulated in alternative-practice communities. Treat these as exploratory, not established.
Sound & relaxation
Higher tones are perceived as louder at the same measured level, so they need lower volume for comfort.
How to use it
Short 5–10 minute sittings, quiet, ideally over a low base tone.
Suggested session length
5 · 10 · 15 minutes — listening style: Accent layer; intensity: intense.
Safe listening
Use noticeably lower volume than mid-range tones. Stop immediately if you notice ringing or discomfort.
Pair with
Physical sound properties, human perception, relaxation effects associated with audio, and traditional frequency beliefs are distinct categories and are kept separate above. Nothing here is medical advice. Read the wellness disclaimer