Three frequencies, three different meanings
Breathing pace, audible pitch and a stereo difference deserve their own names.
The rhythm you follow
The studio’s ten-second breath cycle repeats 0.1 times per second. This is a pacing frequency. You see it as the expansion and return of the circle. It is far below the pitch of the audible tone. Matching a visual guide is not the same as measuring a physiological response.
The tone you hear
A pure 432 Hz tone describes an audio oscillation repeating 432 times per second. You can select 440 Hz or 216 Hz instead. These options let you compare the sound at the same volume and within the same breathing practice. The studio does not label one pitch as spiritually superior or medically healing.
The difference between the ears
In stereo mode, the left ear receives the base tone and the right ear receives that tone plus the selected difference. With a 432 Hz base and a 6 Hz difference, those pitches are 432 and 438 Hz. Use stereo headphones to keep the channels separate. This arrangement can produce a binaural-beat percept. That experience does not establish that your brain has synchronized to 6 Hz.
What the research can support
A 2023 systematic review examined fourteen studies of binaural beats and brain oscillations. Results were inconsistent, and methods varied substantially. A pleasant or unusual listening experience can still be valuable, but it should not be presented as proof of reliable brainwave entrainment.
Harmonics are ratios
The harmonic mode uses three tones at one, two and three times the base: with a 216 Hz base these are 216, 432 and 648 Hz. That is an exact numerical relationship. Any chosen fundamental has integer-multiple harmonics; the relationship is not exclusive to 432 Hz. A mathematical ratio tells us how the tones relate, not what they will do to a listener’s health.
Try fewer layers first
Begin in silence. Add one soft tone and notice the difference. Then try a stereo or harmonic option if you are curious. Change one setting at a time so you know what you changed. Keep the volume low, and stop if the sound feels tiring. Silence is a complete option, not an inferior one.