Speaker Test
Check that your speakers or headphones play from the correct side, find a dead earbud, and test bass and treble.
🔈 Start with your volume low. Never test at full volume with headphones on.
How high can you hear?
The VSH take: a hearing-age fun fact
Use the slider to find the highest tone you can still hear. Children can often hear up to 17,000–20,000 Hz, while many adults stop hearing somewhere between 12,000 and 15,000 Hz. It is a fun family test, not a medical one; small speakers may also stop before your ears do. See a doctor or audiologist for a real hearing test.
What each test checks
- Left / Right: wiring and balance. Headphones marked L and R the wrong way round, or a Bluetooth balance slider, show up here.
- Sweep (40 Hz → 16,000 Hz): listen for rattles, buzzing or parts of the sweep that disappear. Phone and laptop speakers usually cannot play deep bass below about 150 Hz.
- Mono: if Left and Right both play from both sides, check “mono audio” in accessibility settings.
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Frequently asked questions
How do I test left and right speakers?
Press Left, then Right. Each tone should come only from that side. If not, check the headphone labels, balance setting and mono audio.
Why can’t I hear the bass sweep at the start?
Small speakers in phones and laptops can’t play very low notes. Try headphones or larger speakers.
Is this a hearing test?
No. The frequency slider is a fun check only. For a real hearing test, see an audiologist.
Is it safe for my ears?
Keep volume low and short. The page uses gentle tones, but always start quiet, especially with headphones.
Does this work on Bluetooth earbuds?
Yes. Some Bluetooth devices add a short delay, so wait a moment after pressing a button.
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