AI Noise Suppression Killed Background Noise — But Is It Ruining Your Mic?
Quick answer: AI noise suppression (in Discord, Teams, Zoom, and tools like NVIDIA Broadcast and Krisp) is excellent at removing keyboard clatter and fans, but it can also clip the start of words, add a watery artifact, or make your voice sound processed. If people say you sound robotic, the filter is often the culprit — not your mic. Check your raw audio with the microphone test.
What AI suppression does well
These systems are trained to separate speech from everything else, so they strip out steady background noise — fans, hum, distant traffic — and even transient sounds like typing far better than the old noise gates. For calls in noisy environments, that is a genuine upgrade, and it is now built into every major conferencing app.
Where it goes wrong
Because it is aggressive, it sometimes treats parts of your voice as noise. The common symptoms are clipped word beginnings, a slightly underwater or metallic tone, and dropouts when you speak softly. Stacking filters makes it worse: if your headset, your OS, and your conferencing app are all denoising at once, the layers fight each other. Running two noise-suppression tools together is a frequent, self-inflicted cause of bad audio.
How to get clean sound
Pick one place to do noise suppression and turn the others off. If you already have a decent mic in a quiet room, you may not need it at all — raw audio often sounds more natural. Test at a normal speaking distance, and avoid maxing input gain, which forces the filter to work harder and introduces more artifacts.
Isolate the filter from the mic
The quickest way to tell whether the problem is your microphone or the processing is the microphone test, which captures your raw input with no app-level filtering. If you sound clean there but processed in calls, the fix is in the app's noise settings. Our guide on mic echo and background noise covers the rest.