Binaural beats
An auditory effect created when slightly different tones are presented separately to each ear.
Also known as: binaural audio
By Rob KnottLast reviewed
What it means in practice
Binaural beats may influence attention or relaxation for some listeners, but evidence for inducing astral projection is not established. Volume should remain comfortable and sleep-safe.
For the longer discussion of reported experiences and evidence limits, read about binaural beats and astral projection.