Audio Frequency Converter

The Audio Frequency Converter is a small but powerful app for converting music to 432Hz, 528Hz, and custom frequencies.


  • Load mp3, wav, m4a (AAC), FLAC, and many other file formats.
  • Supports 24 bit high quality audio (for instance FLAC) input and output.
  • Support for multi-channel (more than two stereo channels) audio.
  • Export converted music to mp3, m4a, FLAC, wav, or the input source format.
  • Built-in default frequencies: 174Hz, 285Hz, 396Hz, 417Hz, 432Hz, 440Hz, 444Hz, 528Hz, 639Hz, 741Hz, 852Hz, 963Hz.
  • Convert to different custom frequencies (up to two decimals).
  • Define the source and target frequencies.

Example use-cases for the app (but no limited to):

  • Music therapy.
  • Esoteric applications (e.g. Solfeggio).
  • 432Hz music listening.
  • 528Hz music listening.
  • Music tuning: Many musicians do not use 440Hz as base frequency. Also classic orchestras usually use their own base frequencies. The app allows you to adjust your music to these frequencies.
  • Well-being and joyfulness.


Platform Download/Purchase
Apple iPhone and iPad: iOS Apple Store
Android: Google Play Android Market
Microsoft Windows 10 and newer (64 Bit): Microsoft Windows 10 and later
MacOS 10.13 and newer: Apple macOS 10.13 and later