Fan Hum
A steady fan-like hum: band-shaped noise, a very slow sway and a single low motor tone. Synthesised, not recorded.
How is it made?
- Pink noise · 0.06 Hz slow wave
- Pure tone · 118 Hz
Sound is generated on this device in real time; no files are downloaded from a server. There is a 8 s fade-in at the start and a 5 min fade-out at the end.
Evidence
S · Soundscape, no claimNo health or mental-effect claim at all; it is simply a soundscape.
This session isn't linked to any claim of effect.
A session's level is the weakest of its linked claims; it is never raised by a strong but unrelated claim.
Keep your device volume comfortable, preferably below 60%. You can also use your device's headphone-safety settings.