Audio & Sound•Direct Browser Native API
Microphone Test
Check your microphone audio input level, peak dB volume, frequency response, and live waveform.
Ready for Testing
Audio Source:
Click "Test Microphone" to begin live acoustic capture
Live Input Signal Meter (RMS & Peak)
0%|-∞ dB
-60 dB (Silence)-24 dB-12 dB (Optimal Speech)-3 dB0 dB (Clip)
Peak Level-∞ dB
Audio Stream StateClosed
Hardware PermissionIDLE
Privacy Guarantee 100% Local
How to Test Your Microphone Test
- Click 'Test Microphone' and grant browser permissions when prompted.
- Speak, whistle, or snap your fingers near your device's microphone.
- Check that the visual waveform oscillates and the Input Signal Level bar responds.
- Switch between Waveform and Spectrum mode to see harmonic acoustic distribution.
- Click 'Stop Stream' when finished to release device hardware locks.
Browser API Precision & Limitations
Microphone presence does not evaluate hardware acoustic fidelity or manufacturer studio calibration.
Standard note: A passing test confirms your operating system and browser receive valid hardware event signals. It does not replace physical laboratory calibration.
Troubleshooting Common Issues
01.If the volume bar stays at 0%, ensure your microphone is not physically muted with a hardware switch.
02.Check Windows Settings > Privacy & security > Microphone to ensure desktop apps and web browsers have microphone access enabled.
03.Verify that another application (Zoom, Discord, Microsoft Teams) does not have an exclusive hardware lock on the device.