OBS Mic Test
Verify your microphone is working correctly before starting your OBS stream or recording. Test levels, detect clipping, and check input quality — no OBS required to start.
Microphone Test
IdleHow to use
Setting Up Your Mic in OBS Studio
Once your mic passes the browser test above, here's how to configure it correctly in OBS Studio for the best audio quality.
Open OBS Settings
Launch OBS Studio, click the Settings button (bottom-right gear icon), then navigate to Audio in the left sidebar.
Set Mic/Auxiliary Audio
Under Global Audio Devices, find 'Mic/Auxiliary Audio'. Click the dropdown and select your microphone. This is the device that matched in our test above.
Check the Audio Mixer
Back in the main OBS window, look at the Audio Mixer section. Your mic should appear with a green level bar. Speak into your mic — the bar should move to the yellow/green zone.
Set audio levels
Aim for peaks between -20 dB and -6 dB. Use the volume slider in the Audio Mixer or add a Gain filter to boost a quiet mic. Avoid the red zone (clipping).
Add filters
Right-click your mic source → Filters. Add: Noise Suppression (RNNoise), Noise Gate (to cut background noise between sentences), and Compressor (to even out volume levels).
Test with a recording
Hit Start Recording (not streaming) and record 30 seconds of speech. Play it back using VLC or Windows Media Player to verify final audio quality before going live.
Essential OBS Audio Filters Explained
Noise Suppression
Removes background noise (fans, air conditioning, keyboard clicks). Use RNNoise for AI-powered suppression or Speex for lighter CPU usage.
Noise Gate
Automatically silences the mic when you stop speaking, preventing background hum between sentences. Set Close Threshold just above your room noise level.
Compressor
Evens out volume differences — quiet words get louder, loud words get quieter. Ratio 4:1, Threshold -18 dB is a good starting point.
Gain
Boosts or cuts the overall mic level. If your mic is too quiet even at 100% OBS volume, add +5 to +15 dB of Gain. Avoid excessive gain which amplifies noise.
Equalizer (EQ)
Shape the tone of your voice. High-pass filter at 80–100 Hz removes rumble. Boost 2–5 kHz slightly for voice clarity. Cut harsh frequencies around 3–4 kHz.
Limiter
Hard ceiling that prevents clipping regardless of how loud you get. Set at -1 to -3 dB as a safety net after your compressor.
Common OBS Audio Problems & Fixes
❌ Mic not detected in OBS
Fix: OBS Settings → Audio → set Mic/Auxiliary Audio to your device. If grayed out, ensure no other app has exclusive access. Restart OBS as administrator.
❌ Audio out of sync with video
Fix: Add a 'Video Delay' (Sync Offset) to the video source, or an audio delay to the mic. Common culprits: Bluetooth headset latency, or audio buffering settings.
❌ Echo in stream audio
Fix: Use headphones instead of speakers (speaker audio bleeds into mic). Enable 'Echo Cancellation' in Windows sound settings. Add Noise Suppression filter in OBS.
❌ Mic volume too low in stream
Fix: Add a Gain filter in OBS (right-click mic → Filters → Add → Gain). Increase by 5–10 dB increments. Also check Windows microphone boost setting.
❌ Crackling or popping sounds
Fix: Increase Audio Buffer in OBS Settings → Advanced → Audio → Audio Buffering. Try 200–500ms. Also disable audio enhancements in Windows sound settings.
Frequently Asked Questions
Does testing my mic here guarantee it'll work in OBS?▼
If your mic passes the browser test — it shows up in the device list and the level meter responds to your voice — it will work in OBS. Both use the same system audio input. Confirm OBS has the same device selected.
What's a good mic for OBS streaming?▼
USB condenser mics like the Blue Yeti, Audio-Technica AT2020USB+, or HyperX Quadcast offer excellent quality for streaming. For XLR setups, the Shure SM7B paired with an audio interface is the gold standard for professional streamers.
Should I use 44.1 kHz or 48 kHz sample rate in OBS?▼
Use 48 kHz for streaming and recording. Most broadcast and streaming platforms use 48 kHz as their standard. Set this in OBS Settings → Audio → Sample Rate: 48 kHz.
Why does my mic sound muffled in OBS playback?▼
Common causes: Low-pass filter is active, wrong microphone position (too far or too close), or Noise Suppression set too aggressively. Try reducing Noise Suppression intensity or removing it entirely to isolate the cause.
Can I use a mobile phone mic for OBS?▼
Yes, using apps like WO Mic (turns your phone into a USB/WiFi mic) or by using a TRRS-to-TRS adapter with a 3.5mm headset. Test it with our mic tool first to confirm it's recognized by your computer.