Beta wave, or beta rhythm, is a neural oscillation (brainwave) in the brain with a frequency range of between 12.5 and 30 Hz (12.5 to 30 cycles per second). Beta waves can be split into three sections: Low Beta Waves (12.516 Hz, Beta 1 power); Beta Waves (16.520 Hz, Beta 2 power); and High Beta Waves (20.528 Hz, Beta 3 power). Beta states are the states associated with normal waking consciousness.Mind