Your music.
In 432.
Upload your library. Listen in true 432 Hz, on any device. High-quality retuning that respects the original recording.
Demo Track
Experience the 432 Hz difference
432 Hz
Sign up to upload your own music and hear the difference.
How it works
1
Upload
Drag and drop your music files. MP3, FLAC, WAV, M4A, OGG, OPUS.
2
Retune
Our polyphase resampler retunes your music to 432 Hz in real time, right in your browser.
3
Listen
Stream from any device. Your library syncs everywhere. Adjust the reference pitch live.
Built for quality
Most pitch-shifting tools use cheap playback rate tricks that smear transients and add artifacts. 432Tuner uses a 64-tap Kaiser-windowed polyphase sinc resampler to retune your music with zero compromise.
64-tap FIR filter
Kaiser-windowed sinc for pristine frequency response
256 polyphase positions
Sub-sample accuracy with linear interpolation
Click-free transitions
128-sample crossfade when changing pitch live
Full fidelity
Lossless source, lossless quality output