Check Your Setup Before the Call
Most audio and video problems on calls come down to the wrong device being selected, a missing permission, or a level that’s too quiet. These tests show exactly what your browser receives and plays, so you can fix the problem before anyone else hears it.
- Microphone test: live level meter, waveform, and a 5-second recording you can play back.
- Webcam test: live preview with the real resolution and frame rate your camera delivers.
- Speaker test: left, right and centre channels plus bass, mid and treble tones.
- Headphone test: left/right check, a polarity (phase) check and a full frequency sweep.
Privacy
Your microphone and camera are only switched on when you press Start, and only inside this page. Audio and video are processed on your device — nothing is recorded to a server or sent anywhere. Recordings you make for playback stay in your browser and disappear when you leave.