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432 Hz
Updated 22 October 2026
432 Hz is a pitch, an A that is slightly lower than the standard 440 Hz. Many people say music tuned to 432 Hz feels warmer and more relaxing. Here you can listen to a soft 432 Hz tone on its own or with nature sounds, and read what the research does and does not show.
Press play
Play opens the sound masker with this mix already loaded, so you can hear it and shape it.
How to set it up
- Press Play on 432 Hz tone. It is a gentle sine wave at 432 Hz with its lower octave.
- Keep the volume low. Pure tones get tiring faster than noise.
- Open it in the sound masker to add Ocean or Rain underneath for a softer sound.
- To compare, play the 528 Hz tone next and notice the difference.
432 Hz vs 440 Hz
Since 1955, most of the world tunes the note A above middle C to 440 Hz. Before that, tuning varied by country and era, and some historical pitches were lower. Supporters of 432 Hz say it is more natural or more in harmony with the body. Those claims are not backed by physics or physiology.
What the research shows
A few small studies have compared music at 432 Hz and 440 Hz. One pilot study reported a slightly lower heart rate with 432 Hz music, but the samples were small and the listeners often knew which version they heard. There is no good evidence that 432 Hz heals or changes the body. If it relaxes you, that is a fine reason to listen.
Questions
What is 432 Hz good for?
Many people find it relaxing. There is no reliable evidence of health effects beyond that.
Is 432 Hz better than 440 Hz?
It is lower by about a third of a semitone. Whether it sounds better is personal.
What about 528 Hz?
See the 528 Hz page. It comes from the solfeggio frequencies, and its claims are also unproven.