Audio tool

Mic test and sound meter

Check your microphone works before an online class, exam or interview, and see how loud a room is.

Microphone

– dB

–loudest so far

–average

–microphone in use

Press the button and allow the microphone.

Typical sound levels

dB	Sounds like
30	Quiet library, whisper
40–50	Quiet room, rainfall
60	Normal conversation, classroom
70–80	Busy road, loud TV, vacuum cleaner
85+	Heavy traffic, crackers, loud music. Long exposure can damage hearing.

Phone and laptop microphones aren't calibrated, and most adjust their own volume, so the decibel reading is an estimate. Use it to compare, not as an official measurement.

The level doesn't move.

Check the right microphone is chosen above, that it isn't muted on your device, and that no other app (like Zoom or Teams) is using it. On Windows, see Settings › Privacy › Microphone.