Microphone Test
Real-time spectrum & waveform analysis
Professional Mic Test Features
No drivers or software installation needed. Our online mic test leverages modern browser Audio APIs to deliver the microphone signal data available to your browser.
Real-time Waveform Visualization
Observe sound amplitude and details in real time through a high-refresh oscilloscope view. Supports transient response detection to help you determine if your microphone can capture subtle sound variations.
Audio Spectrum Analysis
Deep analysis of sound frequency composition. Through FFT (Fast Fourier Transform) spectrograms, visually identify low-frequency noise or high-frequency roll-off to optimize your recording environment.
Echo Test
Instant recording playback lets you hear how you sound to others immediately, without any third-party software.
Privacy & Security
All audio processing happens locally in your browser. We never upload your recording data — completely safe and traceless.
Using this test
A professional online mic test platform, delivering the most authentic sound data with zero setup.
Native Audio API
No software or plugins required. Leveraging the browser's native Web Audio API, audio samples exposed by the browser are used for spectrum analysis.
Local processing
We adhere to "local-first." All recording, analysis, and processing happen in your browser's local memory — audio streams are never uploaded to any server.
Visual Spectrum
Using FFT (Fast Fourier Transform) algorithms, sound frequency distribution and waveform dynamics are displayed in real time, helping you identify noise floor, clipping, and frequency response issues.
How to Run a Mic Test
Just three steps to complete your mic test and fully understand your microphone performance.
Microphone Test
Click "Allow" for browser microphone access. Observe the real-time waveform — speak into the mic and check whether there's signal input and if volume levels are normal.
Recording Playback
Use the recording playback tool to record a 5–10 second voice clip and listen back. This is the most direct way to check for echo, ambient noise, and vocal clarity.
Headphone Test
Put on headphones and go to the headphone test page. Use left/right channel separation tests and frequency sweeps to ensure your output device has no channel imbalance or frequency gaps.
Audio Glossary
Sample Rate
The number of sound samples captured per second, measured in Hz. Common rates include 44.1kHz (CD quality) and 48kHz (video standard). Higher sample rates preserve more high-frequency detail.
Frequency Response
The range of sound frequencies a device can capture or play. Human hearing ranges from approximately 20Hz to 20kHz. A good device should maintain a flat response curve across this range.
Noise Floor
The level of electronic noise produced by the device itself when there's no external sound input. A lower noise floor (smaller dB value) means a cleaner recording background.
Clipping
When input volume exceeds the maximum level a device can handle, the top of the waveform gets "chopped off," producing harsh distortion. Reduce gain appropriately to avoid this.
Audio Troubleshooting Guide
Having sound issues? Use the guide below for self-diagnosis:
Microphone Not Working
Troubleshooting steps:
Electrical Hum / High Noise Floor
Solutions:
Echo Issues
Root cause analysis:
Audio Stuttering
Possible causes:
Sound Testing Use Cases
Gaming Voice Chat
Ensure teammates can hear your calls clearly during intense battles, with no distortion or electrical buzz.
Karaoke & Recording
Test your sound card and mic frequency response, adjust reverb and latency for studio-quality results.
Online Meetings
Self-test before Zoom/Teams meetings — avoid the awkward "hello? can you hear me?" opening.
Live Streaming
Check mic and background music volume balance before OBS streaming, monitor real-time levels.
Frequently Asked Questions
Q.Are the test results accurate?
Very accurate. We directly call the browser's underlying AudioContext API for raw data streams. However, results also depend on your hardware (sound card/microphone) quality.
Q.Why can't I see the waveform?
Please make sure you've clicked "Allow" on the browser's microphone permission prompt. If denied, click the lock icon to the left of the address bar to reset permissions and refresh the page.
Q.Can I use it on mobile?
Yes. This site is fully optimized for mobile browsers (iOS Safari / Android Chrome). However, on mobile, the system may temporarily interrupt other audio playback during recording.
Q.What is "phantom power"?
Phantom Power (+48V) is a method of supplying DC power through the microphone cable, specifically to drive the internal circuitry of condenser microphones. Dynamic microphones typically don't need it.
Sound Optimization Tips
- • Physical Environment: Recording in rooms with carpet or curtains can significantly reduce echo.
- • Distance Control: Keeping your mouth 10–15cm from the microphone is the best distance for full vocals (proximity effect).
- • Pop Filter: Using a pop filter effectively eliminates plosives (air bursts from P and B sounds).
- • Gain Settings: In system settings, setting microphone volume to 80–90% often produces less noise than 100%.