Chromatic Tuner 440 / 432 / Drone

什么是 Chromatic Tuner 440 / 432 / Drone？

A free browser-based chromatic tuner supporting both 440Hz and 432Hz reference pitch. — Real-time pitch detection via mic (guitar, bass, winds, voice) — Built-in drone player with all 12 notes and multiple waveforms — One-tap switching between 440Hz and 432Hz — Works offline after first visit — install to your home screen Why 432Hz? Some musicians prefer it. We're not here to argue, just to give you the option. Free. No signup. No app store.