Processing stays on your PC
Live microphone audio is never uploaded for cleaning — it matters for confidential calls and strict employer policies.
Windows 10 and 11
Noise cancellation for Windows
Kleervox removes background noise from your mic in real time — set it up once for Zoom, Teams, Meet, Discord and OBS. Your audio never leaves your PC.
Why a system-level app
Configure it once instead of in every app
Each call app hides its own noise setting, browser calls often have none, and none of them help when you record.
A speech-trained model, not a noise gate
Quiet talking survives; steady hum does not. A gate cuts everything below a volume threshold, clipping the beginnings of words and doing nothing while you speak.
One clean microphone everywhere
Windows sees it as an ordinary input device. Anything that lets you choose a microphone can use it — including recording and streaming tools.
Handles the sounds gates miss
Keyboards, chairs, dogs, doors and nearby talk. Those sudden, speech-like sounds are exactly where a simple threshold filter gives up.
One-time setup
Setting up on Windows
Windows needs a small signed audio driver for a new microphone. Kleervox walks you through it once.
- 1
Install Kleervox
Run the Windows installer from the download page.
- 2
Follow the microphone setup
The installer sets up a small, Microsoft-signed virtual audio driver that provides the virtual microphone. If that step didn’t complete, Kleervox walks you through it (download, extract, run as administrator, install), then detects it and routes to it for you.
- 3
Choose your real microphone
In Kleervox, select the headset, USB or laptop mic you speak into.
- 4
Select the clean mic in your call app
Pick the microphone Kleervox’s setup screen shows you. Do this in Zoom, Teams, Meet, Discord or OBS, and keep your headphones or speakers as the output.
The virtual audio driver is third-party software, not part of Kleervox. Its licence and origin are shown in the installer and in the app’s third-party notices.
Works everywhere you talk
The same clean microphone in every Windows call app
It works like a normal input device — in calls and in recordings.
- Zoom
- Microsoft Teams
- Google Meet
- Discord
- Slack huddles
- Browser calls
- OBS Studio
- Audio recorders
About speaker echo on Windows
Echo cancellation is available on Linux today; on Windows it is still in development. Headphones remove echo completely on any platform.
Frequently asked
Windows noise cancellation FAQ
Does Kleervox work on Windows 10 and Windows 11?
Yes. Kleervox runs on Windows 10 and Windows 11 and cleans your microphone in real time, so every call app receives audio that already has the background noise removed.
How do I remove background noise on Zoom on Windows?
Open Kleervox and select your real microphone inside it, then open Zoom's audio settings and choose the Kleervox microphone as the input. Because the cleaning happens before Zoom receives the signal, you can leave Zoom's own suppression off.
Why does Windows need a separate microphone driver?
Windows has no built-in way for an app to publish a new microphone to the system, so a small signed audio driver is needed. The Kleervox installer sets up a small, Microsoft-signed virtual audio driver that provides the virtual microphone, then the app routes the cleaned audio to it automatically. It is a one-time setup.
Which input do I select in my call app on Windows?
After setup, choose the microphone that Kleervox's setup screen tells you to pick as the input in Zoom, Teams, Meet, Discord, or OBS. Keep your normal headphones or speakers as the output device.
Does Kleervox cancel speaker echo on Windows?
Not yet — echo cancellation is available on Linux today, and system-audio reference capture on Windows is still in development. If callers report hearing their own voice back, wearing headphones removes that path entirely, which is the most complete fix on any platform.
Will it slow down my PC during calls?
The cleaning runs continuously while a call is active, so it does use some processor time. It is designed to run alongside a video call on ordinary laptop hardware, and it automatically reduces its own workload if the machine starts to struggle.
Is my microphone audio uploaded anywhere?
No. Noise cancellation runs entirely on your own PC. Live microphone audio is not sent to a server for processing, so it keeps working even when your connection is poor.
Do I need a special microphone?
No. A headset, USB microphone, or the one built into your laptop all work. Getting the microphone closer to your mouth still helps, but the point of the app is that you should not need to buy new hardware to sound clear.
Related guides
Hear it before you install
Mix your mic with sample noise in the browser demo. It runs on your machine — nothing is uploaded.
Test it free in your browser