Play a 50 Hz tone and adjust the sound below.
A 50Hz signal completes 50 cycles per second. 50Hz matches the electrical mains frequency used in many regions and can serve as a hum reference. This page is best for quick comparisons, hum-awareness listening, and stable low-end reference playback.
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 50Hz instantly. Start with a sine wave for the cleanest reference, then compare it with square or saw when you want more harmonic edge.
If you are checking line-frequency behavior, compare 50Hz with 60Hz and 100Hz. 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 50Hz reference. Switch to square or saw only when you want more harmonic texture.
Yes. This page links straight into Hzvibe with 50Hz preloaded, so you can return to the same tone or share the URL with someone else.