Question 1

How do I test my microphone online?

Accepted Answer

Click 'Start Test' and allow microphone access when your browser asks. The tester will immediately show a real-time waveform, volume meter, and frequency spectrum of your microphone input. Speak or make sounds to verify it's working correctly.

Question 2

Why is my microphone not working in the test?

Accepted Answer

Check these common issues: 1) Browser permission — click the lock icon in the address bar and ensure microphone access is allowed. 2) Correct input device — check your OS sound settings to verify the right mic is selected. 3) Physical connection — ensure your mic is properly plugged in or Bluetooth-paired.

Question 3

Is my microphone audio recorded or sent anywhere?

Accepted Answer

No. All audio processing happens entirely in your browser using the Web Audio API. No audio data is recorded, stored, or transmitted to any server. The test is 100% client-side and works even offline after the page loads.

Question 4

What is the waveform display showing?

Accepted Answer

The waveform shows the raw audio signal from your microphone in real time. The height of the wave corresponds to volume (amplitude). A flat line means no sound is detected. Consistent, clean waves indicate good audio quality, while erratic patterns may suggest noise or interference.

Question 5

How do I check microphone volume levels?

Accepted Answer

The volume meter shows your microphone's input level as a percentage and visual bar. For clear audio, aim for levels between 50-80% during normal speech. If levels are too low, increase your mic gain in OS settings. If they're clipping (100%), reduce the gain.

Question 6

Can I test my headset microphone?

Accepted Answer

Yes, headset microphones (USB, 3.5mm, and Bluetooth) all work with the tester. Make sure your headset mic is selected as the default input device in your operating system's sound settings before starting the test.

Question 7

What does the frequency spectrum show?

Accepted Answer

The frequency spectrum (FFT visualization) shows which frequencies your microphone is picking up. Human speech typically falls between 85-255 Hz (fundamental) with harmonics up to 8 kHz. This helps identify if your mic has frequency response issues or is picking up unwanted noise at specific frequencies.

Question 8

Can I record and play back my microphone audio?

Accepted Answer

Yes, the tester includes a record and playback feature. Click 'Record' to capture audio, then 'Play' to listen back. This helps you evaluate your microphone's actual sound quality. The recording stays in your browser and is never uploaded.

Microphone Tester

Frequently Asked Questions