528 Hz tone generator
Play the tone, then read the part most pages leave out: where the story attached to this number came from, and how much of it survives contact with the evidence.
528 Hz is one of the nine “solfeggio frequencies”, a set of numbers popularised in the 1970s and 1990s and often presented as ancient. As a sound it is an ordinary pitch — roughly a C, a little sharp of concert tuning. As a tone to sit with it is perfectly pleasant. The claims attached to it are a separate matter.
Where the solfeggio set comes from
The frequencies were derived in the 20th century by applying a numerological reduction to numbers found in a Biblical passage, then presented as a rediscovered ancient scale. The medieval solfège syllables the name borrows — ut, re, mi, fa, sol, la — are real and belong to a system of relative pitch teaching, not absolute frequencies. Medieval Europe had no way to measure hertz and no fixed reference pitch to measure against.
The DNA repair claim
The most repeated claim is that 528 Hz repairs DNA. It traces to a single, decades-old assertion that has never been supported by published experimental work, and there is no mechanism by which an audible pressure wave at that frequency would do anything of the kind. We state that plainly because pages that repeat the claim are the reason people arrive here confused.
If you have seen 528 Hz described as a treatment for illness, that claim has no evidential support. Listening to a tone is harmless at a sensible volume; replacing medical care with it is not.
So why is the player still here?
Because a steady tone at a pitch you like is a reasonable thing to sit with, and because the honest version of this page is more useful than either the credulous version or no page at all. Use 528 Hz if you enjoy it. Use 432 Hz if you prefer that. Use any frequency at all — the generator does not care, and neither does the physics.
The nine solfeggio tones
| Frequency | Traditional label | Note |
|---|---|---|
| 174 Hz | Foundation | Low; needs headphones or a decent speaker |
| 285 Hz | Restoration | |
| 396 Hz | Liberation from fear | Roughly a G |
| 417 Hz | Facilitating change | |
| 528 Hz | Transformation, “love frequency” | The most searched of the set |
| 639 Hz | Connection | |
| 741 Hz | Expression | |
| 852 Hz | Intuition | |
| 963 Hz | Awakening | The highest; bright and thin |
The labels are traditional within the modern solfeggio literature. They are not measurements of anything, and this table is here so you can find the pitch you are looking for — set it with the carrier slider above, on the solfeggio player or on the tone generator.
Questions
What is 528 Hz supposed to do?
It is commonly described as a healing or “love” frequency, and associated with claims about DNA repair. Those claims have no scientific support. What it does is play a steady tone.
Is 528 Hz the same as a musical note?
It is close to C5 but not identical in standard tuning — in equal temperament at A=440 Hz, C5 is about 523 Hz.
Are solfeggio frequencies ancient?
No. The set was constructed in the 20th century. The solfège syllables it borrows from are medieval, but they describe relative pitch, not fixed frequencies.
Can I add a binaural beat to 528 Hz?
Yes — the second preset puts a 6 Hz theta beat over a 528 Hz carrier, and the main generator lets you set any combination.