Click L or R to verify channel placement
In Phase = centered. Out of Phase = hollow, diffused.
Headphone test guide
No software needed — run a complete headphone performance check directly in your browser.
Full-Range Detection
Comprehensive frequency sweep covering the entire 20Hz–20kHz human hearing range, paired with sub-bass rattle detection to pinpoint driver weaknesses and resonance.
Spatial & Phase Analysis
Exclusive 8D surround audio test and polarity check to verify your headphones' soundstage imaging and whether the left/right wiring is correct.
Burn-in Tools
Play pink or white noise to listen for unwanted sounds. Playback does not establish or guarantee an improvement in headphone performance.
When Should You
Test Your Headphones?
New Headphone Check
Verify left/right channel balance, check for driver imbalances, buzzing, or static right out of the box.
Second-hand Verification
Use the frequency sweep to quickly identify hidden defects or aging damage in used audio equipment.
Burn-in & Maintenance
Use pink noise to warm up new drivers — soften the sound signature and unlock your headphones' full potential.
Gaming Calibration
Verify your headphones' spatial audio accuracy for FPS games — ensure you can pinpoint enemy footsteps.
How It Works
Three simple steps to a complete headphone health check.
Choose a Test
Select from the toolset above — stereo balance, frequency sweep, phase check, sub-bass rattle detection, or 8D spatial audio demo. Each test targets a specific aspect of headphone performance.
Listen Carefully
Put on your headphones at a comfortable volume. Follow the on-screen cues. For the L/R test, confirm each ear hears the correct channel. For the sweep, note any silent spots or distortion.
Interpret Results
If you detect imbalance, buzzing, phase issues, or dead frequencies, it may indicate a hardware defect, loose connection, or aging driver. Use our guide below to understand what each result means.
What to Listen For
Key indicators that reveal your headphones' true condition.
Channel Imbalance
If one side sounds louder than the other during the L/R test, you may have a driver mismatch, a partially damaged cable, or earwax buildup blocking one side.
Frequency Dead Zones
During the sweep, if certain frequency ranges suddenly go silent or become very quiet, the driver may have physical damage or the headphone design has a pronounced dip in its frequency response curve.
Buzzing or Rattling
Vibrations heard during the sub-bass test (20–60Hz) often indicate a loose driver, debris inside the housing, or a damaged diaphragm. This is especially common in used or heavily worn headphones.
Hollow Phase Sound
If the 'In Phase' noise sounds thin and diffused instead of centered in your head, your headphone cable may have reversed polarity on one channel — a common issue with aftermarket cables.
Frequently Asked Questions
Q.What is the 8D surround sound test?
8D audio uses HRTF algorithms to make sound rotate around you in 360° space. This test evaluates your headphones' soundstage width and imaging ability — quality headphones will let you clearly track the sound's position as it moves.
Q.Why should I run a phase (polarity) test?
Reversed phase is a common wiring fault. If your headphones are out of phase, bass will be severely cancelled out, and the sound will feel 'hollow' with no center image. This test helps you quickly identify cable wiring issues.
Q.How long should I test?
Basic functional tests (L/R channel, frequency sweep) only take a few minutes. For burn-in, we recommend playing pink noise for 2–4 hours per day for about a week — keep the volume moderate.
Q.What is the sub-bass rattle test for?
This test uses very low frequencies (20Hz–50Hz) at high intensity to excite potential resonances in your headphone drivers or housing. If you hear buzzing or rattling, it may indicate debris or adhesion issues in the driver unit.
Q.Can I test wireless Bluetooth headphones?
Yes. All tests work with Bluetooth headphones. However, Bluetooth audio codecs (SBC, AAC, aptX) may introduce slight compression artifacts at extreme frequencies. For the most accurate results, use a wired connection if available.
Q.Is headphone burn-in real?
It's debated among audiophiles. The theory is that new drivers' diaphragms are stiff and loosen up with use, subtly changing the sound signature. Whether the change is measurable or placebo, many users report a subjective improvement after 20–50 hours of pink noise burn-in.