Binaural Beats &
Noise Generator

Frequency Key

Gamma (> 40 Hz)

Higher mental activity, incl. perception and problem solving

Beta (13 to 39 Hz)

Active thinking and concentration

Alpha (7 to 13 Hz)

Relaxation

Theta (4 to 7 Hz)

Deep meditation/relaxation

Delta (< 4 Hz)

Deep dreamless sleep