Question 1

What is brainwave entrainment?

Accepted Answer

Brainwave entrainment is the practice of synchronizing brain activity to an external rhythmic stimulus — typically a binaural beat or isochronic tone. The brain tends to match the frequency of the stimulus through a process called frequency following response. Delta frequencies (0.5–4 Hz) are associated with deep sleep, theta (4–8 Hz) with meditation and creativity, alpha (8–14 Hz) with relaxed focus, and beta (14–30 Hz) with active thinking. The SixthSense generates these stimuli in real time using stacked oscillators and precise beat frequencies.

Question 2

What is the difference between binaural beats and isochronic tones?

Accepted Answer

Binaural beats require headphones — a slightly different frequency is sent to each ear, and the brain perceives the difference as a rhythmic pulse. Isochronic tones are a single tone that pulses on and off at a set rate and work without headphones. Both are used for brainwave entrainment. The SixthSense supports both approaches and can layer them together with ambient frequencies for a richer sound environment.

Question 3

What are solfeggio frequencies?

Accepted Answer

Solfeggio frequencies are a set of tones — 396, 417, 528, 639, 741, and 852 Hz — rooted in Gregorian chant and widely used in sound healing and meditation. Practitioners associate each with specific effects: 396 Hz with releasing fear, 417 Hz with facilitating change, 528 Hz with transformation, 639 Hz with connection, 741 Hz with awakening intuition, and 852 Hz with spiritual order. The SixthSense includes these as one-tap presets.

Question 4

Do I need headphones for The SixthSense?

Accepted Answer

Headphones are required to perceive binaural beats, since each ear needs to receive a different frequency. For isochronic tones, solfeggio frequencies, and ambient soundscapes, speakers work fine. For the deepest entrainment effect, stereo headphones are recommended.