Solfeggio frequency · Compassion
285 Hz. See it and hear it.
285 Hz is the second of the nine Solfeggio frequencies: the tradition calls it Compassion and links it to regeneration and caring for yourself. Musically it falls between two notes: it's 48 cents sharp of C#4 (277.18 Hz), almost a quarter tone.
The shape of 285 Hz.
In Chladni it lands right on one mode, (12, 0): a regular grid of diamonds, even though the note sits between two. In Mandala, eight strong spokes cross the rings: it's one of the cleanest shapes in the series.
It's a Cymatica render, not an illustration: the same figure comes back every time you play 285 Hz.
Compassion, in the Solfeggio tradition.
In the Solfeggio tradition, 285 Hz is linked to compassion, regeneration and care. Along with 174 it's an entry tone: it has no energy center of its own on the map and sits before the root.
It's 111 Hz above 174 and 111 Hz below 396, the step the tradition sees repeating through the series. And 2 + 8 + 5 = 15, and 1 + 5 = 6.
In Cymatica it's level 2 of the Path. Some people come back to it on days when they ask too much of themselves, with a simple intention: give yourself the same tenderness you'd give someone else.
285 Hz in figures.
| Frequency | 285.00 Hz |
|---|---|
| Nearest note (A = 440) | C#4 |
| That note, in tune | 277.18 Hz |
| Deviation | 48 cents sharp |
| With A = 432 | D4 −20 ¢ |
| Plate mode in Chladni (n, m) | (12, 0) |
| In XY, against A | 1.295, no simple interval; the curve keeps turning |
| Wavelength in air | 120.4 cm |
| Period | 3.509 ms |
Tab. 01 · Note and cents worked out with equal temperament; a semitone is 100 cents. The plate mode and the XY ratio come from the app's own engine with the preset range (60 to 2600 Hz). Wavelength with sound at 343 m/s.
285 Hz, pure tone.
A 285 Hz sine wave generated in your browser on the spot: no recording, no compression, no music on top. It fades in from silence and rises slowly.
Turn your volume down before you start. With headphones, lower still. If it bothers you at any point, stop.
Why people pick it.
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Meditating. For a self-compassion practice: coherent 5-5 breathing, five minutes and one kind sentence addressed to yourself.
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Studying. Some people use it as a break between blocks of work: two or three minutes to drop the pressure before going on.
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Resting. For long days: lie down with it at low volume and do nothing else.
How to practice with 285 Hz.
Suggested practice
Coherent 5-5 breathing. Mandala mode, Ice palette, Vesica piscis layer (Pro) or Seed of Life (free). 5 minutes. Intention: give yourself the same tenderness you'd give someone else.
What people ask about 285 Hz.
Q1What is 285 Hz used for?
In the Solfeggio tradition, 285 Hz is the frequency of compassion and caring for yourself. People use it to meditate, to take a break on a demanding day or to rest. What you see on this page is physics: the shape that tone draws, the same every time. Cymatica is a listening and attention practice: it isn't a health product and doesn't replace care from a professional.
Q2Pure tone or music?
What plays here is the pure tone: a single 285 Hz sine wave, no harmonics, no beat, no lyrics. It's the simplest thing you can listen to and the exact reference for the frequency. Many "285 Hz" tracks out there are music with that tone mixed underneath, or whole songs retuned: they're easier company for an hour, but they're no longer just 285 Hz. To practice while watching the shape, the pure tone is what draws it.
Q3Headphones or speakers?
Either works. Headphones shut the room out; speakers fill it. What matters is volume: low, below a conversation. Small phone speakers don't reproduce low frequencies well, so the lowest tones in the series (174 and 285 Hz) come through better on headphones. The pure tone isn't binaural: it sounds the same in both ears. The app's Binaural mode does need headphones.
Q4285 Hz or 432 Hz?
They don't compete: they're two different things. 432 Hz is a tuning, where you put the A and, with it, every other note; 285 Hz is one specific tone. With A = 440, 285 Hz sits near C#4, 48 cents sharp; with A = 432, near {{NOTA_432}}, {{DESVIO_432}}. The app has both tunings: listen to both and keep the one your body asks for.
Q5Why does 285 Hz sound slightly out of tune?
Because it falls between two notes: 48 cents sharp of C#4, almost halfway to the next one. On its own you won't notice, since a pure tone has nothing to compare itself to; next to a piano or a song, you will. On the plate, though, it lands right on one mode, (12, 0): the shape is steady even if the note isn't.