Isochronic tones
Isochronic tones are regular beats of a single tone that are used alongside monaural beats and binaural beats in the process called brainwave entrainment. At its simplest level, an isochronic tone is a tone that is being turned on and off rapidly. They create sharp, distinctive pulses of sound.

Isochoric tones can be differentiated with different levels of alertness and problem-solving capabilities, they can also be differentiated by the frequency of the noise
Gamma: high levels of concentration, a problem solving mind.
Beta: an active mind, waking state.
Alpha: calm and composed mind.
Theta: sleepy, tired mind.
And Delta a sleeping state.
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See also
- Audio–visual entrainment
- Binaural beats
- Brainwave entrainment (Brainwave synchronization)
- Hemi-Sync
- Trance
References