100% Local Processing
- Audio never leaves your device — no server uploads, no cloud storage
- Recordings exist only in browser memory until you download or close the tab
- Perfect for testing before sensitive calls or recording confidential content
When to Test Your Mic
- Before job interviews or important video calls (Zoom, Teams, Meet)
- Setting up a new headset, USB mic, or audio interface
- Troubleshooting 'they can't hear me' issues in calls
- Checking if your mic works after OS updates or driver changes
- Comparing audio quality between different microphones
What the Waveform Tells You
- Flat line while talking = mic isn't picking up sound (wrong device selected?)
- Constantly maxed out = input gain too high, causing clipping/distortion
- Very small waves = mic too far away or gain too low
- Spiky noise when silent = background interference or bad cable
- Healthy waveform = peaks at 50-80% when speaking normally
Common Fixes
- No microphone found: Check cable connections, try different USB port, restart browser
- Permission denied: Click lock icon in address bar → allow microphone access
- Wrong mic active: Use the device dropdown to select your preferred microphone
- Audio too quiet: Check system sound settings → input volume/gain slider
Pro Audio Tips
- Speak 6-12 inches from mic (closer = more bass, 'proximity effect')
- USB mics are plug-and-play; XLR mics need an audio interface
- Pop filter or foam windscreen reduces plosives (p, b, t sounds)
- Record a test clip, play it back, and listen with headphones for true quality check