// effects · tool 20
432 Hz Converter
Retune any song from standard concert pitch (A=440 Hz) down to A=432 Hz — a shift of −0.32 semitones. Flip the A/B toggle while it plays and decide with your own ears.
Drop a song here
MP3, WAV, M4A, OGG, FLAC and more — or click to browse
[ drop works anywhere on this page ]
Convert music to 432 Hz — and hear the difference for yourself
- Drop your song — it decodes locally; nothing is uploaded.
- Preview — playback starts in 432 Hz tuning.
- A/B compare — flip the toggle mid-song to jump between the 440 Hz original and the 432 Hz version at the same spot.
- Export — download the retuned track as WAV or MP3.
The honest version of the 432 Hz story
Modern music is tuned to A=440 Hz, a standard formalized in the 20th century. The 432 Hz movement argues music sounds better — some say feels better — tuned 8 Hz lower. What does the evidence say? There is no peer-reviewed support for claims that 432 Hz resonates with the universe, water, or DNA; the physics arguments don't survive contact with acoustics. We won't sell you mysticism.
Here's what is true: a shift of −31.77 cents makes everything slightly darker and mellower, and some listeners genuinely, consistently prefer it — the way some prefer vinyl warmth. Preference doesn't need pseudoscience to be valid. That's exactly why this page has an A/B toggle: convert, flip between versions blind if you can, and keep whichever your ears choose.
How the conversion works
The track is resampled by the ratio 432/440 (≈0.9818), shifting every frequency down 0.32 semitones — the same mechanism as slowing analog tape. This keeps timbre perfectly natural at the cost of the track running about 1.85% longer. If you'd rather shift pitch while keeping the exact duration, use the Pitch Shifter at −0.32 semitones.
FAQ
What does converting to 432 Hz actually do?
It lowers the whole track by 31.77 cents so music tuned to A=440 lands at A=432. Every note moves down by the ratio 432/440.
Is 432 Hz scientifically better than 440 Hz?
No peer-reviewed evidence supports special physical or healing properties. But a genuine aesthetic preference for the slightly darker sound is real for some listeners — use the A/B toggle and trust your ears.
Does the conversion change the song's speed?
Yes, by about 1.85% — this converter uses the classic resampling method (like tape), which sounds completely natural. A 3-minute song gains about 3 seconds.
Is my music uploaded?
No — the conversion runs on your device in the browser.