Stereo Audio Panning & Channel Tester
Verify headphone and speaker left/right channels, soundstage balance, and auto-sweep panning with test tones.
Stereo Audio Panning & Channel Tester
Verify headphone L/R channels, soundstage positioning, and stereo balance
How to Use Stereo Audio Panning & Channel Tester
1. Connect Headphones or Speakers
Put on your headphones or position yourself between your left and right stereo monitors.
2. Test Left & Right Channels
Click Left or Right to play calibrated test tones exclusively through individual audio channels.
3. Verify Spatial Separation
Confirm that your audio balance, stereo wiring, and headphone jacks are functioning correctly with zero bleed.
How This Utility Works
Essential audio testing tool for headphones, monitors, and studio speakers. Tests discrete Left and Right channels, center phantom image, continuous panning balance slider (-1.0 to +1.0), and automated left-right panning sweep oscillators.
Audio oscillators and microphone frequency spectrum analyzers process data in volatile RAM via Web Audio API. Audio streams are never recorded or saved.
Frequently Asked Questions
Why does only one side play when testing Left or Right?
This isolates that individual physical speaker channel to verify proper wiring, driver health, and stereo orientation.