01
What this can prove
The test can reveal an audible imbalance or missing channel in the current complete path.
Headphone check
Headphone test
Check both sides with repeatable references and capture the result as evidence.
Before you begin
Start at a low device volume. No sound starts automatically. Use Stop all audio at any time.
Earpiece and balance check
Headphone sequence
Check each earpiece separately, compare centered balance and finish with a short range sweep.
Run one reference at a time. Record what you actually hear before changing the setup.
- 01
Left earpiece
A 500 Hz tone should appear only in the left earpiece.
- 02
Right earpiece
The same 500 Hz tone should appear only in the right earpiece.
- 03
Centered balance
Pink noise through both channels should appear centered rather than pulled to one side.
- 04
Short headphone sweep
A 200 Hz to 8 kHz sweep helps reveal a repeatable dropout or buzz.
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02
What it cannot prove
One failed listening test cannot determine whether the headphones, cable, adapter, device or software caused it.
03
Privacy and safety
Signals and analysis stay in your browser by default. Browser dBFS is not physical SPL.
How to use this test
Keep the comparison controlled.
- 01
Wear the headphones normally
Confirm left and right orientation and keep operating-system balance centered.
- 02
Check each earpiece
Run the left and right references before comparing the centered signal and sweep.
- 03
Retest on another path
If a problem appears, repeat the same reference on a second device before assigning a cause.