Frequency
100 Hz
Low Threshold
Explore this frequency
Established audio/sound principle
What it is
A 100 Hz sine tone, the upper boundary of the GSS low-frequency band.
What users may experience
Clearly audible on nearly all devices; described as full and present.
Traditional associations
Used as a bridge tone between low drones and mid-range tones.
Sound & relaxation
Because it reproduces reliably on phones and laptops, it is a practical low layer when headphones are not available.
How to use it
Good default low layer when listening on a phone speaker.
Suggested session length
10 · 20 · 30 minutes — listening style: Base layer; intensity: steady.
Safe listening
Keep volume modest.
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