What Are Binaural Beats?
A binaural beat is an auditory illusion perceived when two different pure-tone sine waves, both with frequencies lower than 1500 Hz, are presented to a listener dichotically (one through each ear).
For example, if a 530 Hz pure tone is presented to the right ear and a 520 Hz pure tone is presented to the left ear, the listener will perceive the auditory illusion of a third tone, in addition to the two pure-tones presented to each ear. This third sound is called a binaural beat, and in this example, it would have a perceived pitch of 10 Hz (the difference between 530 Hz and 520 Hz).
Brainwave Entrainment
This phenomenon allows us to "entrain" our brainwaves. The brain has a tendency to synchronize its dominant frequency with the frequency of the beat. This is called Frequency Following Response (FFR).
Target States
- Delta (1-4 Hz): Deep sleep, healing, detachment vs. awareness.
- Theta (4-8 Hz): Meditation, intuition, memory, creativity.
- Alpha (8-14 Hz): Relaxation, visualization, visualization.
- Beta (14-30 Hz): Alertness, concentration, cognition.
- Gamma (30-100+ Hz): High-level information processing, insight, peak focus.
The Science
Heinrich Wilhelm Dove discovered binaural beats in 1839, but it wasn't until 1973 that Gerald Oster published "Auditory Beats in the Brain" in Scientific American, identifying them as a powerful tool for cognitive and neurological research.
By using headphones (stereo separation is required), you can directly influence your mental state, guiding your mind from chaotic Beta stress into deep Theta meditation within minutes.
