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.
Brainwave frequencies are in the range of 0.1 to 4 (Delta), 4 to 7 (Theta), 7 to 13 (Alpha) and 13 to 60 (Beta) cycles per second (Hz).
| Frequency | Wave | Function |
|---|---|---|
| 1 Hz @ 27.5 Hz | Delta | Lethargic |
| 2 Hz @ 55 Hz | Delta | Deep Sleep |
| 3 Hz @ 110 Hz | Delta | Dreamless |
| 4 Hz @ 220 Hz | Theta | Drowsy |
| 6 Hz @ 440 Hz | Theta | Fantasy |
| 8 Hz @ 880 Hz | Alpha | Relaxed |
| 12 Hz @ 1,720 Hz | Alpha | Conscious |
| 16 Hz @ 3,520 Hz | Beta | Focussed |
| 24 Hz @ 7,040 Hz | Beta | Active |
| 32 Hz @ 14,080 Hz | Beta | Fear /!\ |
