Clean the Audio in Your Video — Without Touching a Single Frame
Recorded a great video but the audio is ruined by background noise? Upload it here and Denoisr will clean only the audio track — your video frames, codec, and resolution stay exactly as they were. No re-editing in Premiere or DaVinci needed. Works with MP4, MOV, M4V, WebM, and MKV up to 1 GB.
Denoisr only processes the audio track. Your picture is never re-encoded, so visual quality is preserved pixel-for-pixel.
Picture stays untouched
Your original frames, codec, resolution, and aspect ratio are preserved — only the audio track is cleaned.
No re-editing required
Skip the round trip to Premiere or DaVinci. Upload the video, fix the audio, download the result.
Large file support
Videos up to 1 GB upload through Denoisr's global edge network for fast transfer worldwide.
Quick answer
Yes, you can clean the audio in a video file online without re-editing the video itself. Upload your MP4, MOV, M4V, WebM, or MKV to Denoisr and the AI extracts the audio track, removes background noise (fan hum, room echo, traffic, AC), and muxes the cleaned audio back into your original video container. The video frames, codec, and resolution are never re-encoded — only the audio changes. No software install, no timeline editing, no export settings to worry about.
- What it does:
- Cleans only the audio track inside your video file
- What it leaves alone:
- Video frames, codec, resolution, and aspect ratio — all untouched
- Supported formats:
- MP4, MOV, M4V, WebM, MKV up to 1 GB
- Free credits:
- 5 credits on signup, no card required
Upload your video and clean the audio track
Drop a video file, choose your cleanup mode, and download the same video with a cleaned audio track. Your picture stays untouched.
Supports MP4, MOV, M4V, WebM, and MKV. Best for videos with voice — talking heads, screen recordings, vlogs, webinars, and course videos.
Drop your video file here
Upload the video with noisy audio. Denoisr cleans the audio track and returns the same video with a polished voice track.
Sign up free — get 5 credits (about 5 min of cleanup) on us. No card required.
One file at a time
Upgrade to Starter for 2-file batches
What to expect
Which video audio problems it handles — and which ones it cannot
Denoisr is built for voice cleanup. It handles steady background noise in video recordings well but has limits with certain sound types.
Works well for
- Talking-head video with AC or fan noise in the room
- Screen recording with laptop fan or desk fan audible
- Vlog footage with distant traffic or street noise
- Webinar or meeting recording with room echo and hum
- Course video with HVAC buzz picked up by a lapel mic
- Interview shot in a cafe or hotel room with ambient noise
May not fully fix
- Outdoor video with wind blowing directly into the microphone
- Concert footage or live music recordings
- Video with background music you want to keep intact
- Severely clipped or distorted audio from a broken mic
- Overlapping speakers talking at the same time
- Audio recorded underwater or through heavy physical obstructions
How it works
Four steps to fix the audio in your video
No timeline editing, no export settings, no re-encoding. Upload, clean, download.
Upload your video
Drag and drop or browse for an MP4, MOV, M4V, WebM, or MKV file up to 1 GB. The browser reads the duration locally so you see the credit cost before anything uploads.
AI extracts and cleans the audio track
The AI separates the audio from the video, identifies the noise profile, and removes background noise while preserving voice clarity. Your video frames are never touched.
Preview the result
Play the before and after side by side right in the browser. Listen to the difference without downloading anything.
Download your fixed video
Download the same video file with the cleaned audio track muxed back in. Upload it directly to YouTube, social media, your LMS, or your editor.
Common use cases
Videos people fix with this tool
YouTube videos
Fix the audio on a finished YouTube video without reopening the project in your editor. Upload, clean, re-upload.
Online course videos
Clean up lecture recordings and tutorial videos where fan noise, room hum, or HVAC crept into the audio over a long session.
Meeting recordings
Fix Zoom, Teams, or Google Meet recordings that picked up echo, keyboard clatter, or background office noise.
Webinar recordings
Polish webinar audio after the fact — remove room noise from presenters who recorded in noisy home offices.
Social media content
Clean the audio on TikTok, Instagram Reels, or LinkedIn video clips before posting — no editing software needed.
Client deliverables
Hand off a polished video to a client without explaining why the audio sounds rough. Fix it in minutes before sending.
Key details
What makes this different from re-editing in your NLE
Designed for people who have a finished video and just need the audio fixed — not a full post-production workflow.
Picture untouched
Your video frames, codec, resolution, and aspect ratio are preserved pixel-for-pixel. Only the audio track is replaced with the cleaned version.
Large file support (1 GB)
Long lectures, full webinar recordings, and multi-segment vlogs upload through Denoisr's global edge network for fast transfer.
Three cleanup modes
Clean Noise for a light pass, Enhance Voice for full studio-grade polish, Podcast Ready to also trim filler words. Stack any at no extra cost.
No re-encoding
The video stream passes through untouched. No generation loss, no resolution change, no codec conversion. Just a clean audio track.
Before / after comparison
Listen to the original and cleaned versions side by side in the browser before you download.
No software to install
Everything runs in the browser. No plugins, no desktop app, no Premiere, no DaVinci — just upload, clean, and download.
Hear the difference
Hear the audio cleanup across real video noise
Both clips use the same demo footage on purpose — so nothing on screen distracts from the actual comparison: how the audio track changes after Denoisr.
Identical demo footage on both sides — focus on the audio track.
Office meeting noise
Audio: projector / HVAC fan + distant chatter + paper or keyboard taps. The noise mix that ruins meeting recordings — once the audio is cleaned, the conversation is much easier to follow.
What to listen for
We use one shared demo clip across every sample so the picture doesn't get in the way. Toggle Before / After and pay attention to what Denoisr does to the audio.
Voice-trained AI
Keeps speech natural while suppressing steady background noise.
One-pass cleanup
No plugins, no DAW, no manual noise-profile selection.
Compare before you commit
Toggle the cleaned result against the original — download only what sounds right.
Denoisr video audio cleanup — at a glance
Clean audio from video — questions answered
Will cleaning the audio affect my video quality?+
No. Denoisr only processes the audio track. Your video frames, codec, resolution, and aspect ratio are passed through untouched — the output is pixel-for-pixel identical to your source, just with a cleaned audio track muxed back in.
What video formats are supported?+
MP4, MOV, M4V, WebM, and MKV. If you have a less common container, a quick lossless remux to MP4 (which most tools can do in seconds without re-encoding) will make it compatible.
How big can my video file be?+
Up to 1 GB per file. Files upload through Denoisr's global edge network, so even large recordings transfer quickly regardless of your location.
Can I clean just a section of the video?+
Right now Denoisr processes the entire uploaded file. To clean a specific segment, trim it in your editor first and upload only that part — you will also save credits since you are processing less duration.
How long does it take for a 30-minute video?+
Most 30-minute videos finish in 5-10 minutes depending on the cleanup modes selected and current queue load. Clean Noise is fastest; Podcast Ready takes longer because it runs deep speech analysis. A live progress indicator shows the status throughout.
Clean the audio in your video — no re-editing required
Upload your video, let the AI fix the audio track, and download the result in minutes. Five free credits included, no card required.