How to Test Your Microphone: Check Your Mic on PC and Phone
Right before a video call or a stream, it is easy to wonder whether anyone can actually hear you. This guide shows how to test your microphone in about a minute using only your browser, how to read the input level correctly, and what to check, in order, when your mic is not picking up sound.
The three things a mic test should check
“Testing your mic” actually covers three separate questions. Working out which one is failing gets you to the cause much faster.
- 1. Is it detected? Your operating system and browser must see the microphone as a device. If the device name appears, this step passes.
- 2. Is it picking up sound? The input level should move when you speak. If it does not, suspect mute or the wrong input device.
- 3. How do you sound to others? Volume, clipping, and background noise. A level meter alone cannot tell you this; recording yourself and listening back is the reliable way.
Most people check only the first two and stop there, but the third is where problems on calls usually come from. “I can hear you, but you are quiet” or “there is a hum behind your voice” are things you will only notice by listening to yourself.
How to test your mic in your browser in one minute
There is nothing to install. As long as your browser is allowed to use the microphone, you can test it on the spot.
- 1
Open the microphone test tool
The steps are the same on a computer or a smartphone, in any supported browser. Wired and Bluetooth headsets both work.
- 2
Allow microphone access
Choose “Allow” in the browser’s permission prompt. Once allowed, the name of the microphone actually in use is shown. If it is not the device you expected, switch to the right one.
- 3
Talk for about 10 seconds at your normal volume
Instead of holding an “ahh”, read a sentence the way you would speak in a meeting. If the level meter and waveform move with your voice, the mic is picking up sound.
- 4
Record and play it back
Finally, make a short recording and play it back. You will hear exactly what others hear: volume, muffled sound, keyboard clicks, and even air conditioner or fan noise.
What input level is right, and how to read it
A level meter that moves is not automatically fine. Call quality drops if the level is too low or too high. Judge it by the peaks, the loudest moments while you are talking.
| Peak while talking | What it means | What to do |
|---|---|---|
| Below -40 dB | Too quiet. Hard for others to hear | Move closer to the mic or raise the input volume in your OS |
| -30 dB to -6 dB | Good. Suitable for calls and recording | Leave it as is |
| Close to -6 dB to 0 dB | A little loud. Little headroom before distortion | Lower the input volume slightly |
| Stuck at 0 dB | Likely clipping and distortion | Lower the input volume or move away from the mic |
If the level keeps moving while you are silent, the mic is picking up background noise. Air conditioners, PC fans, and kitchen extractor fans are common culprits, so try changing the position or direction of the mic if you can.
What to check, in order, when your mic is not working
When the mic does not respond, narrow down whether the problem is in the browser, the operating system, or the hardware, working from the top. In this order, most issues are solved within a few minutes.
- 1
Check the browser permission
Use the microphone icon in the address bar to make sure the site’s microphone permission is set to “Allow”. If you clicked “Block” in the past, the prompt will not even appear.
- 2
Check your OS microphone settings
On Windows, open Settings > Privacy & security > Microphone. On macOS, open System Settings > Privacy & Security > Microphone. Make sure the browser you are using is allowed.
- 3
Make sure no other app is using the mic
A video meeting or recording app running in the background can take over the microphone so other apps cannot use it. Quit any apps left open in the background.
- 4
Check for a physical mute
This is often overlooked. Check the mute switch on your headset cable, the mute button on the mic itself, and the mute function key on your laptop.
- 5
Reconnect it or try another port
A USB mic is sometimes recognized after being plugged into a different port. For Bluetooth, disconnect the device once and pair it again.
What to check before a video call or stream
- Is the device the one you intended? (Make sure the laptop’s built-in mic and your external mic have not swapped.)
- With a Bluetooth headset, has it switched to the call profile and dropped in sound quality?
- When you listen to your recording, is the noise more noticeable than your voice?
- Is the mic placed so the distance to your mouth stays constant? (Avoid setups where turning your head changes the volume.)
- Is the input device in your meeting app set to the same mic you tested in the browser?
Bluetooth headsets in particular can switch to a lower-quality connection the moment the mic is used. If music sounded great but your voice sounds muffled on calls, this is the reason. For important meetings, keeping a wired headset on hand is the most reliable option.
FAQ
- Do I need a special app to test my microphone?
- No. As long as your browser is allowed to use the microphone, you can check the input level and record and play back your voice right away. Because nothing needs to be installed, it also works on shared computers or devices away from home.
- Is my recording sent to a server?
- Not with this site’s microphone test tool. Audio analysis and recording happen entirely in your browser, and the data is discarded when you close the page.
- Can I test my microphone on a phone?
- Yes. On iPhone or Android, allow microphone access in your browser and you can run the test. (Support depends on the device and browser.)
- Why does the level move but people cannot hear me?
- If the mic works in your browser but not in your meeting app, the app is most likely set to a different input device. In the app’s audio settings, make sure the same device name you tested is selected.
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