There are five different brain waves:

Delta: 1-4 Hz. Delta is the lowest frequency state, and it’s linked to:

  • Deep sleep
  • Healing and pain relief
  • Meditation
  • Anti-aging: cortisol reduction/DHEA increase
  • Access to the unconscious mind

Theta: 4-8 Hz. Theta binaural beats benefits include:

  • Meditation
  • Deep relaxation
  • Creativity

Alpha: 8-14 Hz. When you are in an alpha state of mind, your brain is focused and productive. Alpha brain waves help you to:

  • Relax and focus
  • Reduce Stress
  • Maintain positive thinking
  • Increase your learning capabilities
  • Easily engage in activities and the environment because you are in a state of flow

Beta: 14-30 Hz. Beta is a higher frequency brainwave and helps in:

  • Keeping your attention focused
  • Analytical thinking and solving problems
  • Stimulating energy and action
  • High-level cognition

Gamma: 30-100 Hz. With a higher frequency than beta, these brain waves help in:

  • Increased cognitive enhancement
  • Attention to detail, helping in memory recall
  • A different way of thinking, which is a sign of creativity

From: https://www.webmd.com/balance/what-are-binaural-beats

From https://www.researchgate.net/figure/Diagram-showing-how-binaural-beat-works_fig1_357293575

Figure from https://www.researchgate.net/figure/Diagram-showing-how-binaural-beat-works_fig1_357293575

More: https://en.wikipedia.org/wiki/Beat_(acoustics)#Binaural_beats