Microphone and Speaker Test
Check input level, hear your voice, and test stereo channels
Microphone
Microphone permission is requested only after you press Start. Audio stays on this device. Stop releases the microphone immediately.
Microphone is off.
Your local test recording
Playback stays in this browser tab and is cleared when you leave or reload.
Speakers and headphones
Turn your device volume down before testing. Each tone is brief and quiet. Stop microphone capture before testing to avoid feedback.
Ready. Stereo separation requires two output channels; mono devices may play both tones together.
About audio tests
A microphone turns sound waves into an electrical signal that a device can record or transmit. Its level changes with distance, speaking volume and background noise. A quick level check helps find a working input before a meeting, lesson or recording session.
Playing back a short sample can reveal problems that a level meter alone cannot: distortion, echoes, hum, or an unexpectedly quiet voice. Testing with headphones can also help separate room noise from playback. It is wise to listen at a comfortable volume and avoid placing a live microphone close to a speaker.
Stereo systems have left and right channels that create a sense of direction. A channel test can show whether headphones are connected correctly or whether one side is silent. Phone speakers and accessibility settings may combine both channels into mono, so a channel test is a guide to your current setup rather than a hardware diagnosis.