Mic Test
Use this microphone test to verify browser permissions, input level, and selected device without installing software.
Microphone Input Test
Your microphone input is processed in your browser. Device Test Tools does not need to upload your audio to run this test.
Input level
0%
Status: Waiting to start
How to Start the Mic Test
- Click Start mic test and allow microphone access in your browser prompt.
- Speak normally and watch the live input level bar.
- If needed, change the microphone device and restart the test.
- Use Stop to end the active microphone stream at any time.
Privacy and Browser Limitations
This page is a practical browser check, not a studio-grade audio measurement tool. Browser permission state, OS routing, and device drivers can affect results.
Your microphone input is processed in your browser. Device Test Tools does not need to upload your audio to run this test.
Mic Test FAQ
Why can't this page access my microphone?
Check browser permissions, OS input settings, and whether another app is already locking the mic device.
Does this upload my audio?
No. This tool is designed to process microphone input locally in your browser for live level monitoring.
Why is the level meter very low?
Your input gain may be low, the wrong device may be selected, or the microphone may be far from your voice source.
Can I switch microphones?
Yes, use the device selector, then restart the test to request a new stream from the selected device.