--- title: 'Noise Cancellation & Virtual Backgrounds | Cosmos Video' description: 'Cosmos Video cuts background noise from your calls and replaces what is behind you with a professional virtual background, for messy or private desks.' url: '/product/features/noise-cancellation--virtual-backgrounds.md' lastModified: '2026-08-12' sourceHash: 'v1:086a162a1657' contentType: 'Feature Page' keywords: ['noise-cancellation', 'background-noise-removal', 'virtual-backgrounds', 'background-blur', 'noise-gate', 'audio-quality', 'video-call-audio'] target_audience: 'remote team members, customer-facing teams, IT decision makers, operations leaders' --- # Noise Cancellation and Virtual Backgrounds in Cosmos Video Cosmos Video noise cancellation cuts the noise coming from your background so your team hears you and not the noise. Virtual backgrounds swap what is behind you for something more professional, which helps when your workspace is messy or you would rather keep it private. Noise cancellation offers three options and two processing models, and virtual backgrounds offer blur, built-in scenes and custom uploads that can be shared across a whole space. ## What problem does this solve? Your mic picks up more than your voice: the building work outside, your keyboard, windy sound from your ceiling fan. In the same way, your camera shows everything that is behind you in the room. ## Noise cancellation in Cosmos Video Cosmos Video cuts the noise your mic picks up before it reaches the call, and lets you choose how hard it works at it. A quiet home office and a building site need different settings. Three options to match your situation: 1. **Cosmos noise cancellation** — recommended, best quality, runs on your device 2. **Browser noise removal** — your browser's basic cleanup, the lightest 3. **Unedited audio** — raw mic with echo cancellation only, for music and streaming ![Cancel noise in three ways - Cosmos noise cancellation, browser noise removal, unedited audio.](https://cosmos.video/api/media/file/Cosmos%20noise%20cancellation.png) Two models inside Cosmos noise cancellation: 1. **Balanced** — good removal at low power 2. **Aggressive** — for genuinely loud environments Also included: - Test how others are hearing you: record a sample and play it back to hear exactly what your team hears through the option you picked - Silence the hum between your words with a noise gate that sends audio only while you speak, and a sensitivity slider to cut steady background noise - Know why nobody can hear you, from an input level monitor that flags the problem as you speak: too quiet, no input detected, or mic muted ## Virtual backgrounds in Cosmos Video Change what is behind you to something more professional. Useful when your workspace is messy, when you are somewhere you would rather not show, or when you would rather keep your surroundings private. Three ways to change what is behind you: 1. **Blur** — soften what is behind you, lightly or heavily 2. **Built-in backgrounds** — choose from a collection of scenes like a mountain range, an office space or a beach 3. **Custom background** — upload your own image, crop it to fit and use it during a call ![The Cosmos virtual background picker: None, Blur and Strong blur, solid colours, built-in scenes including an office, a living room, a beach and a mountain range, and an Upload tile.](https://cosmos.video/api/media/file/Cosmos%20virtual%20background.png) Also included: - Share an uploaded background with your space, so the whole team presents the same look - Check the result in the camera preview before your camera turns on ## Why it matters - Crisp audio keeps a call easy to be in. Background noise makes people strain to follow you, the mood drops, and a conversation that should have been simple turns into hard work. - A messy room behind you is a distraction, mostly for you. A virtual background puts it out of mind, so your attention stays on the call. - A company background shared across the space makes a team look like a team. Everyone takes client calls with the same backdrop, and that consistency reads as alignment. ## Pro tips - Chasing a constant hum? Turn on the noise gate and raise its sensitivity until the hum disappears. - Streaming music into a session? Switch to Unedited audio so Cosmos passes your sound through untouched. ## Frequently asked questions ### How does Cosmos Video remove background noise? Cosmos noise cancellation processes your microphone on your own device and removes background noise while keeping your voice. Two models are available: Balanced for good removal at low power, and Aggressive for genuinely loud environments. Browser noise removal and Unedited audio are the two alternatives. ### Can I test noise cancellation before a call in Cosmos Video? Yes. Record a sample and play it back to hear exactly what your team hears through the option you picked. ### Does Cosmos Video have virtual backgrounds? Yes. You can blur what is behind you lightly or heavily, choose a built-in background such as a mountain range, an office space or a beach, or upload a custom image and crop it to fit. A camera preview shows the result before your camera turns on. ### Can a whole team share the same virtual background in Cosmos Video? Yes. An uploaded background can be shared with the space so every member can apply the same backdrop, which keeps client-facing calls visually consistent. ### Which platforms support noise cancellation in Cosmos Video? The desktop apps and every supported browser: Chrome, Firefox, Edge and Brave.