Audio
Interactive · Runs in this browser
Generate a local reference tone with a safety-limited Web Audio gain control. Compare quiet and moderate settings while adjusting the system volume to confirm that mute, volume keys, output routing, and speaker playback behave as expected.
Speaker test
Play a local stereo tone to check the left and right speaker channels. No audio leaves this device.
Start with a low device volume. Remove headphones before testing loud speakers, and stop immediately if the tone is uncomfortable.
Channel
Left + right
Tone
440 Hz
Auto-stop
3 s
Ready. The test tone will stop automatically after three seconds.
Transparent method
This tool reports only interactions and browser APIs it can observe. It does not infer hidden hardware specifications or turn unsupported access into made-up results.
Useful context
Web pages normally cannot read the operating system's master volume, so the tool provides an audible reference and local gain control instead.
Check mute, output-device selection, Bluetooth routing, browser site permissions, and whether another application has exclusive control of the device.
Troubleshooting
Keep checking