EARS & WAVES

← Frequencies

528 Hz.

The best known of the Solfeggio frequencies: hear it as a pure tone, next to the standard note C, and as a melody tuned around it. Facts and comparisons follow.

Now playing Deep sleep

Listen and compare

Tap an example to play it, and again to pause. 528 Hz is about 16 cents above the standard C (523.3 Hz): close, but you can hear it when one follows the other.

About 528 Hz

528 Hz is the best known of the Solfeggio frequencies, often called the “love frequency” or the “miracle tone”. In music it is a slightly sharp C: the standard C an octave above middle C is 523.3 Hz.

It sounds bright and clear, and many people use it for meditation. That is reason enough to enjoy it; the healing claims around it are not backed by evidence.

Facts that often get mixed up

  • The Solfeggio frequencies are modern. The core six were popularised in the 1990s by Leonard Horowitz, who credits Joseph Puleo with finding them; medieval chant had no fixed pitch in hertz.
  • Claims that 528 Hz repairs DNA have no support: sound at listening levels cannot change DNA.
  • One small study (2018, nine adults) found lower stress hormones after 528 Hz music than after 440 Hz music. It is a single, tiny experiment, not proof.
  • 528 Hz is not a standard note: it is a C about 16 cents sharp, or exactly C if you tune A to 444 Hz.
528 HzC at standard pitchA at standard pitch
What it isOne of the nine Solfeggio frequencies, called the “love frequency”The note C an octave above middle C (C5)The note A above middle C, the tuning standard
Pitch528 Hz523.3 Hz440 Hz
Against standard CAbout 16 cents sharp: a slightly high C——
Against 440 HzExactly 6:5, a pure minor third aboveAn equal-tempered minor third above—
The tuning that makes it CA = 444 HzA = 440 Hz—
What is 528 Hz?

A pure tone at 528 vibrations per second, one of the nine Solfeggio frequencies. Musically it sits just above the note C.

Does 528 Hz repair DNA?

No. That claim comes from popular books, not from research, and sound at listening levels cannot change DNA.

Is there any study on 528 Hz?

A small 2018 study of nine adults found lower stress hormones after 528 Hz music. It is one tiny experiment, so treat it as a curiosity, not proof.

Mixes

Pick what you need. One tap to start, change anything and save it as your own.

Focus timer

Work in waves.

The Pomodoro rhythm: focus with calm sound in your ears, then take a real break. A soft bell marks every change, so you never watch the clock. Every fourth break is a long one.

25:00Focus · 1 of 4

Sound while you work

Breathe

Slow your breathing down.

Follow the circle and the sound: it rises as you breathe in and falls as you breathe out. Choose a rhythm, or set your own, and pick what plays underneath.

Ready

Sound while you breathe

Noise generator

Any color of noise, from deep brown to bright violet — and everything in between.

Brown noise
Spectrum · 20 Hz – 20 kHz

Sound science

The colors of noise

Same randomness, different tilt. Each color shifts energy between low and high pitches — here is what that sounds like.

White

0 dB / octave

Equal energy at every frequency. Because we hear in octaves, it sounds bright and hissy — the classic "TV static".

Pink

−3 dB / octave

Equal energy in every octave, so it sounds even to the ear. Steady rain, rustling leaves. A favorite for focus.

Brown

−6 dB / octave

Deep and warm, like a distant waterfall or a plane cabin. Masks voices and traffic without any hiss.

Grey

Equal-loudness curve

Shaped around how our hearing works, so every pitch seems equally loud. Balanced and soft.

Blue

+3 dB / octave

The mirror of pink: more treble than bass. Airy, crisp, like a light spray.

Violet

+6 dB / octave

Mostly treble, like hissing water. Sometimes used to mask high-pitched ringing.

Calm

Gentle tones to settle into: singing bowls, a slow warm drone, wind chimes tuned so every note fits.

Frequencies

Famous tones on pages of their own: hear them side by side, with honest facts.

Sound phenomena

How sound bends, shifts, rings and fools the ear, and why space is silent: hear it for yourself.

Nature

Rooms & travel

Animals & countryside

A purring cat, whales and dolphins, a nightingale in the dark, cowbells on a summer pasture. Wonderful in stereo.

For babies

Womb sounds are what a baby heard for nine months: a deep rush of blood flow, and the heartbeat.

Hearing and speaker tests

Check your ears, headphones and speakers, each test on a page of its own with a live picture.

Ear Age · 60 seconds

Test your ears.

Our ears lose the highest pitches first, and it starts early. Find the highest tone you can still hear and see the typical age for it.

  • Headphones on, quiet room
  • Set a comfortable volume on the 1 kHz tone
  • Don't turn it up when a tone disappears — that's the point
20,000Hz

Can you still hear it?

Hearing age test →

More ear tests

Check your headphones, find the deepest bass your setup can play, or play any pitch you like.

Headphones check

Left & right

Each ear should get its own side. It matters for 8D, binaural beats and every stereo sound here.

Headphones on, then tap a side.

Bass test

How low can you go?

Deep tones from 200 Hz down to 20 Hz, the bottom of human hearing. Mostly it tests your speakers or headphones.

Tone generator

Any pitch, 20 Hz – 20 kHz

Hz

Start quiet: high tones and square waves get tiring fast.

Take it to bed

An app without the app store.

Add Ears & Waves to your home screen and it opens like any app — full screen, with its own icon. Everything it needs is saved on your device, so it keeps playing on a plane, in a tent or with Wi-Fi off.

Preparing offline mode…
  • Works offlineNo streaming. Sound is computed on your device, forever.
  • Screen offKeeps playing with the phone locked. The timer fades it out gently.
  • PrivateNo account, no ads, no cookies. Your mixes stay on your device.
Deep sleep