TEST GUIDE

Headphone Test – Left and Right Stereo Audio

Play short stereo tones through your connected headphones or earbuds and check each channel by listening. No microphone access or recording is required.

What this test checks

  • Left and right channel routing
  • Audible differences between the two sides

How to use it

  1. Connect headphones and lower your device volume.
  2. Play the left and right channels separately, then both.
  3. If routing seems wrong, check mono-audio and balance settings. Stop if the sound is uncomfortable.

COMMON QUESTIONS

About this phone test

Can this test select my phone’s earpiece?

No. The operating system controls the audio output. Use a phone call to inspect the call earpiece; this test sends stereo channels to the current output.