Play a 440 Hz tone and adjust the sound below.
A 440Hz signal completes 440 cycles per second. 440Hz is the standard concert pitch reference for modern tuning. It is the right page for precise pitch comparison, instrument reference listening, and clean A4 playback in the browser.
Start with your device volume low and stop if playback feels uncomfortable. Do not increase volume to force an inaudible tone to be heard. Browser playback cannot measure hearing thresholds or calibrate sound levels.
Use the preset link on this page to open the Hz Tone Generator at 440Hz instantly. Start with a sine wave for the cleanest reference, then compare it with square or saw when you want more harmonic edge.
Compare 440Hz directly with 432Hz when you want a clear tuning reference rather than a vague description. Keep the same playback level when comparing tones.
Audibility depends on your hearing, speakers or headphones, and playback level. A browser tone is not a calibrated hearing test.
Start with a sine wave if you want the cleanest 440Hz reference. Switch to square or saw only when you want more harmonic texture.
Yes. This page links straight into Hzvibe with 440Hz preloaded, so you can return to the same tone or share the URL with someone else.