Tuning standards set the frequency of the note A above middle C. Since the 20th century most music has used A4 = 440 Hz. Tuning to 432 Hz lowers every note by the same small amount: about 31.8 cents, roughly a third of a semitone.
The intervals between notes do not change, so the music sounds the same, just slightly lower and, to some listeners, a little warmer or darker.
The claims and the evidence
You will find claims that 432 Hz is more natural, healing or mathematically special. There is no solid scientific evidence for these effects; the few small studies that exist are inconclusive. What is real is a slight change in pitch and tone colour, which some people genuinely prefer.
Historically, tuning pitch varied widely, from below 420 Hz to above 450 Hz depending on country and era, before 440 Hz became the common reference.
How to convert a song to 432 Hz
- Open Change Pitch and drop in the song.
- Leave semitones at 0 and set Fine tune to −32 cents (432/440 = −31.77 cents).
- Keep the original tempo ticked, preview, and export.
How to tune an instrument to 432 Hz
Open the Online Tuner, enter 432 in the Reference A4 field and tune as usual. Every string target shifts down to match.
Frequently asked questions
Does 432 Hz sound better?
It sounds slightly lower and some listeners find it warmer. Whether that is better is personal taste; there is no proven physical or health benefit.
How many cents is 432 Hz from 440 Hz?
About 31.8 cents lower, roughly a third of a semitone.
Will converting to 432 Hz change the tempo?
Not if you keep the original tempo. The pitch-shift then changes only the pitch.