Microphone Test
Click “Start Test” and speak into your microphone. Watch the volume meter and waveform, switch inputs, and optionally record a local WebM audio sample.
Audio Monitor
Audio is analyzed locally through the Web Audio API. Nothing is sent to a server, and recordings stay on this device.
Tips for Testing Your Microphone
- 1Click “Start Test” and allow microphone access when your browser prompts you.
- 2Speak into your microphone — you should see the waveform move and the volume meter respond.
- 3Check the volume and peak levels, and try different microphones from the selector if you have more than one input device.
Understanding Microphones
How Do Microphones Work?
A microphone converts sound waves into electrical signals. Vibrations hit a diaphragm inside the mic, generating a signal that is converted to digital audio by an analog-to-digital converter (ADC) in your device.
Web Audio API & getUserMedia
This test uses getUserMedia and the Web Audio API. An AnalyserNode performs real-time frequency analysis to drive the waveform and volume meter. No audio data is sent to any server.
Common Microphone Issues
Low volume — check system input levels. Background noise — use a quieter room or enable noise suppression. Echo — use headphones to prevent speaker audio from feeding back into the mic. Not detected — check browser permissions and close apps that may be using the mic exclusively.
Frequently Asked Questions
Why can’t the website access my microphone?
Your browser requires explicit permission. Click the lock or site-info icon in the address bar and ensure microphone access is set to Allow. Also check that no other application (Zoom, Discord, Teams) is exclusively using the microphone.
Is my audio being recorded or sent anywhere?
No. All audio processing happens in your browser. No audio is transmitted to any server unless you start a local recording and download the file yourself.
Why is the volume meter showing low levels even when I speak loudly?
Check your system microphone input level in OS sound settings. Ensure you are speaking into the correct microphone if multiple input devices are connected.
Can I test my microphone on my phone?
Yes. This test works on desktop and mobile browsers. On iOS, Safari is recommended; on Android, Chrome works well. Allow microphone permissions when prompted.