Earphone phase comparison
Compare sounds with the same and opposite phase.
Compare 2-second tones. Spatial differences depend on your device and settings.
Exercise results
Results appear here when you start.
Results vary with the device, noise and fit.
Earphone phase comparison User guide
When to use this tool
Compare the spatial impression when left and right receive signals with matching or opposite phase. Mono audio and spatial effects can affect the result. A preference for one version cannot establish correct wiring or earphone condition.
How to use and interpret results
Compare 2-second tones. Spatial differences depend on your device and settings.
Note the perceived difference. Wiring faults are not diagnosed.
Lower device volume. Do not raise it to hear a tone. Stop for pain, ringing or discomfort.
How to use · Frequently asked questions
How to use
Compare 2-second tones. Spatial differences depend on your device and settings.
Note the perceived difference. Wiring faults are not diagnosed.
Lower device volume. Do not raise it to hear a tone. Stop for pain, ringing or discomfort.
Frequently asked questions
Is this a medical test?
This is an exercise, not a medical test. Seek professional assessment for hearing concerns or discomfort.
What if I cannot hear a sound?
Do not turn up the volume to check. Check output settings and record unheard tones as they are.
Where are inputs and records stored?
Nothing is sent to a server. Only ear tip and pitch records are saved here, up to five, and can be deleted.