Traditional / experimental practice
Threshold IV · Return
The series closes: a slow rise from theta to alpha, ending awake and calm. An experimental ritual; you can stop at any time.
A traditional or spiritual practice, not a scientific claim.
An experimental ritual. Avoid it if you have a history of dissociation, psychosis or severe anxiety. You can stop at any time.
Do not listen while driving or operating machinery.
How is it made?
- Binaural · Left 197.75 Hz · Right 202.25 Hz · Beat 4.5 Hz (Theta)
- Brown noise
- Beat → 10 Hz over 18 min
Sound is generated on this device in real time; no files are downloaded from a server. There is a 10 s fade-in at the start and a 1 min fade-out at the end.
Evidence
T · Traditional/spiritual practiceNo scientific claim is made; it is offered as a cultural or personal practice.
An experimental listening ritual; it makes no claim of astral travel or of consciousness leaving the body.
Evidence level T: Traditional/spiritual practice- What do we know?
- Out-of-body experience is a described neurological phenomenon; research links it to a failure to integrate bodily sensory information at the brain's temporo-parietal junction.
- What don't we know?
- There is no controlled evidence that sound leads to astral travel or that consciousness separates from the body.
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.