acoustic instruments and soft rhythms to help you relax and meditate.
binaural beats help entrain your brain to specific brainwaves.
gamma waves > 40 Hz:
higher mental activity, including perception, problem solving, fear, and consciousness
active, busy or anxious thinking and active concentration, arousal and cognition
delta waves < 4 Hz:
If external stimulus is applied to the brain, it becomes possible to entrain the brain frequency from one stage to another. for example, if a person is in beta stage (highly alert) and a stimulus of 10Hz is applied to his/her brain for some time, the brain frequency is likely to change towards the applied stimulus. the effect will be relaxing to the person.
the easiest way of applying stimulus to the brain is via ears. however, humans cannot hear sounds low enough to be useful for brain stimulation, so special techniques must be used. one such special technique used is called binaural beats. the effect of binaural beats was discovered in 1839 by german scientist heinrich wilhem dove.
If the left ear is presented with a steady tone of 500Hz and the right ear a steady tone of 510Hz,
these two tones combine in the brain. the difference, 10Hz, is perceived by the brain and is a very effective stimulus for brainwave entrainment. this 10Hz is formed entirely by the brain. when
using stereo headphones, the left and right sounds do not mix together until in your brain. the frequency difference, when perceived by brain this way, is called a binaural beat.