Microphone Test
Input qualityFree online microphone test and mic tester — live input levels in dBFS, latency and sample rate. Nothing is uploaded.
Everything runs in your browser. Nothing is uploaded.How to use the Microphone Test online
- 01 Pick your input device from the selector above — you can switch mics mid-test.
- 02 Press Start microphone test and allow access when your browser asks.
- 03 Speak normally and watch the waveform and input-level meter respond.
- 04 Read the RMS and peak levels — healthy speech sits around −18 to −12 dBFS.
- 05 Press Stop test for a verdict, then Copy results to save for a support ticket.
Common problems & fixes
- Mic not detectedSettings → Privacy & security → Microphone, and allow desktop apps and your browser to use it.
- Very low input levelSound settings → Input → Device properties, and raise the input volume; disable audio enhancements.
- Browser cannot access micSystem Settings → Privacy & Security → Microphone, and enable your browser.
- Wrong input selectedSystem Settings → Sound → Input, choose the device, then re-pick it in the selector above.
- No input devices listedCheck PulseAudio/PipeWire is running: run pavucontrol and confirm the source is not muted.
- Crackling or dropoutsLower the sample rate in your audio server config, or try a different USB port for external mics.
Related checks
While you are here, you can also check the left and right channels, confirm stereo separation in your cans, or verify the camera feed alongside the mic.
Working through the whole category? Browse all audio tests in one place.
Frequently asked questions
Open this free microphone checker, allow access when prompted, speak normally, and read the RMS and peak levels. Switch devices in the selector if you have more than one mic. Nothing is uploaded.
Check OS privacy permissions for your browser, confirm the correct input device, then re-run this test. If the meter never moves, the OS or hardware is blocking input. Full walkthrough: microphone not working.
System Settings → Privacy & Security → Microphone → enable your browser, then run this page.
Aim for an RMS around −18 to −12 dBFS while speaking, with peaks below −3 dBFS. Constant clipping at 0 dBFS means your input gain is too high.
Input latency is the delay between sound arriving and the browser receiving it. Under ~30 ms feels instant; higher values can affect monitoring and calls.
Yes — connect it, then choose it in the device selector. Bluetooth mics often report a lower sample rate and higher latency than wired ones.
No. All analysis happens in your browser using the Web Audio API. Nothing is sent to a server.