Tech Tester
Headphone Test
Test your headphones for left-right stereo, frequency response, bass, treble, and possible audio issues using simple browser-based tools.
Start here
Set your volume low before testing. Some tones and frequencies can sound much louder than expected.
Left / Right TestConfirm your left and right channels are working correctly and not reversed.
Frequency Sweep TestSweep from low to high frequencies to check bass, mids, treble, and distortion.
Sound Frequency GeneratorPlay a single tone at a chosen frequency to test specific parts of the audio range.
What a good headphone test should check
- Left and right stereo channels
- Weak or missing bass
- Harsh or uneven treble
- Buzzing, rattling, or distortion
- Channel imbalance
- Dropouts at certain frequencies
Simple test order
- Start with the Left / Right Test
- Run the Frequency Sweep Test
- Use the Sound Frequency Generator to isolate problem frequencies
Common signs of headphone problems
- Left and right sound swapped
- One side quieter than the other
- Buzzing at bass frequencies
- Sharp or painful treble peaks
- Missing detail in mids or vocals
Quick troubleshooting tips
- Try another browser or device
- Disable EQ or sound enhancements temporarily
- Check cable seating and adapters
- Test wired and wireless modes separately if available
- Keep the volume low during frequency testing