Quantic Heartz: Retune your Mac's audio to 432 Hz
Quantic Heartz is a macOS app that retunes the music, video and browser audio on your
Mac from the standard A=440 Hz to A=432 Hz in real time. It works with Spotify,
Apple Music, YouTube and other music and video apps, such as Tidal and podcasts, with
zero audio-quality loss and no per-app setup.
How to play your Mac's music and video in 432 Hz
- Install: download the DMG and drag Quantic Heartz to Applications. It sets up its virtual CoreAudio driver automatically on first launch.
- Toggle: hit the power button. Quantic Heartz routes the music, video and browser audio on your Mac through its pitch engine, shifting it down by 31.77 cents from 440 Hz to 432 Hz.
- Listen: music, video and browser audio on your Mac now play at 432 Hz, through your speakers or headphones.
What it works with
Quantic Heartz works with Spotify, Apple Music, YouTube and other music and video apps,
such as Tidal, SoundCloud, Netflix and podcasts, plus audio in your browser. The exception
is live voice and video calls (FaceTime, Zoom, WhatsApp, Meet), which macOS routes
directly to the hardware by design, so no audio app can change that.
440 Hz vs 432 Hz
440 Hz is the international standard pitch. 432 Hz is an alternative
tuning that many people find warmer and more natural. The research so far is small and
mixed, so Quantic Heartz makes no medical claims. It is software that lets you hear the
difference yourself.
Requirements
Mac: macOS 13 (Ventura) or later, including Sonoma and Sequoia, on Intel and Apple Silicon. Android: live retuning of other apps needs Android 10 or later, the built-in 432 Hz player works from Android 7; get it on Google Play. A Windows version is in development.
Pricing
7-day free trial with full access to all features. After the trial: Monthly €6.99, Yearly €59.99, or Lifetime €149.99 (one-time).
Frequently asked questions
Does it slow down my Mac?
No. Quantic Heartz runs as a lightweight CoreAudio driver — on an M-series MacBook it adds well under 1% to audio-system CPU, with no perceptible delay.
Is there any audio quality loss?
Zero. Professional-grade pitch-shifting algorithms mean no artifacts, no speed changes and no distortion.
Can I switch it on and off?
Yes. One click toggles Quantic Heartz on or off instantly. When off, audio plays at the standard 440 Hz.
Download for macOS: api.quanticheartz.io/api/download/app ·
Support: support@quanticheartz.io ·
Instagram: @quanticheartz