Test tones, stereo pan (L/R), frequency sweep, and simple patterns using the Web Audio API.
Idle
Playback Controls
User gesture required
Master volume
25%
Frequency (Hz)
440 Hz
Stereo pan (Left / Right)
Center
Safety: Start with low volume. Sweeps and noise can be loud or annoying on headphones.
If you hear distortion, reduce volume — distortion could be the speaker, amp, or OS enhancements.
Session
Audio context
—
Sample rate
—
Current mode
—
Notes
—
Log
If you can’t hear anything:
Confirm the OS volume and output device selection.
Make sure the tab isn’t muted.
Click “Enable Audio” first (browser autoplay policies).
