Test your call audio output
Play a short tone on the left, right, or both channels. Use the result to confirm that the output device you expect is audible.
What this tool checks
The browser generates a 440 Hz Web Audio tone with a short envelope, routes it to the current output, and reports the audio engine sample rate, stereo-panner support, and available latency estimate.
What to listen for
Choose Left and Right in turn. With headphones or stereo speakers, the tone should move to the named side. Choose Both to confirm that a centred call prompt is audible.
If you cannot hear a tone
Check the browser tab volume, the computer’s current output device, headset controls, and operating-system sound settings. Reconnect a Bluetooth headset if it was recently switched.
Why output matters before a call
A browser can have working microphone access while its audio is routed to the wrong output. Testing the actual output device avoids joining a call without hearing the other person.
Limits of this tool
This test cannot inspect physical speaker wiring or choose your operating-system output device. A mono speaker may play both channels from the same place.
Questions before you call
Why do left and right sound the same?
Your output may be mono, the browser may not support stereo panning, or the audio device may combine both channels. You can still use the test to confirm that sound is audible.
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