Check left, right and the range of your speakers or headphones.
Check your left and right speakers or headphones. Press Left, Right or Both and a repeating chime plays from that side only, so a swapped or silent channel is obvious at once. You can switch the chime for a steady low (100 Hz), mid (440 Hz) or high (4 kHz) tone.
The sweep glides from 20 Hz to 20 kHz over 20 seconds with a live frequency readout. Note where the sound first appears to see how deep your speakers go, and press Stop when it fades at the top to find the highest tone you can hear.
All sound is generated in the page, nothing is downloaded. Start with your volume low, especially with headphones.
Press Left, then Right. Each plays a chime from that side only. If Left comes from the right, your speakers or headphones are swapped; if one side is silent, check the cable, the port and the balance setting in your system sound settings.
Roughly 20 Hz to 20 kHz, but the top end fades with age. Many adults stop hearing somewhere between 12 and 17 kHz. Use the sweep and press Stop when the tone disappears.
Small and laptop speakers often cannot reproduce anything below about 150 to 200 Hz. Headphones or a speaker with a subwoofer usually go much lower.
Every calculation happens on this page, in your own browser. Your input is never sent to a server and never logged, which also means the tool keeps working when you are offline.