Microphone Test
Test your microphone online. Check real-time dBFS volume levels, dynamic FFT frequency spectrum bars, live oscilloscope waveform, pitch frequency (Hz), and signal-to-noise ratio.
Live Audio Spectrum & Waveform Visualizer
Microphone Idle
Input Volume (dBFS)
-60.0 dB
Detected Pitch
-- Hz
Note: --
Peak Volume
-60.0 dB
Max input headroom
Sample Rate
-- kHz
AudioContext clock
Channel Count
--
Mono / Stereo input
Signal-to-Noise Ratio
-- dB
Background hiss index
Voice Activity (VAD)
Silence
Speech detection
Microphone Testing & Audio Quality Guide
How to Use This Test
- Click "Start Microphone" and select "Allow" when prompted by your browser.
- Speak into your microphone. The visualizer and volume bar will respond in real time to your voice.
- Switch between Frequency Spectrum (FFT) and Oscilloscope to check sound frequencies or live audio wave shapes.
- Stay quiet for a few seconds to check your Signal-to-Noise Ratio (SNR) and ambient room noise level.
- Check the Detected Pitch and Peak Volume to ensure your voice is loud and clear without clipping.
Microphone Not Detected or Meter Not Moving?
- Physical Mute Switch: Many headsets, USB mics (like Blue Yeti or HyperX), and laptop keyboards have a hardware mute switch or button. Ensure the mute light is off.
- Windows / Mac Privacy Settings: On Windows 10/11, open Settings > Privacy & Security > Microphone and make sure "Let apps access your microphone" is turned On. On macOS, check System Settings > Privacy & Security > Microphone.
- Input Device Selection: Ensure the correct microphone is selected in the device dropdown above if you have multiple audio inputs.
Understanding Peak Volume (dB) & Clipping
Digital volume is measured in decibels (dB), where 0 dB is the maximum ceiling. When speaking at your normal volume, your voice should peak between -18 dB and -6 dB. If the meter constantly hits 0 dB (turning red), your microphone is clipping, resulting in harsh, scratchy distortion.
Sample Rates: 44.1 kHz vs. 48 kHz
Standard audio uses either 44.1 kHz (classic CD standard) or 48 kHz (modern broadcast, video calls, and gaming standard). Both provide excellent clarity that covers the full range of human hearing (up to 20,000 Hz).