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About CleanAudio · Engineering & Transparency

Studio-clarity audio for every creator, anywhere you record

Whether you shoot on an iPhone on a windy street or record podcasts in an untreated home office, CleanAudio removes background noise while keeping your authentic voice and 4K footage untouched.

Independent Engineering Team

CleanAudio is built and maintained by a focused two-engineer independent team splitting responsibilities across client-side Web Audio / Mediabunny media demuxing and cloud GPU inference infrastructure (Modal us-east DeepFilterNet3 workers + Cloudflare Workers & R2 edge storage). What began as an internal workflow fix for windy outdoor vlogs and remote podcast guest tracks grew into a browser-first audio cleanup studio.

Key Engineering Milestones

Most browser denoisers cap uploads at 50MB or force creators to wait 20 minutes uploading a 2GB 4K MOV file just to test whether the AI works. We engineered client-side range demuxing so your browser extracts only the exact 30-second window you select for instant auditioning—paired with bit-exact server-side video stream copying so your 4K picture stays 100% uncompressed.

Zero Voice Cloning & Fair Pricing

Unlike generative speech enhancers that re-synthesize words and occasionally alter accents or vocal timbre, CleanAudio removes only the noise floor and gives you a live 0–100% wet/dry NR slider. Anyone can audition any 30-second segment with zero signup before choosing a non-expiring Pay As You Go pack (starting at $4.99).

Reproducible Noise Reduction Benchmarks

Every metric below corresponds directly to an open sample track playable in our homepage showcase so you can verify with your own ears.

-18.5 dB Noise Floor Reduction

Outdoor Vlog · Wind Gusts & Ambience

Reproducible directly on our homepage sample player: removes 20–400 Hz microphone wind buffeting while keeping natural spoken chest warmth intact.

-16.8 dB Reverb Decay Suppression

Untreated Room · Hollow Echo & Reverb

Attenuates slapback wall reflections in untreated spare rooms and offices so distant condenser or laptop mics sound close-mic dry.

-21.5 dB Steady Drone Removal

Home Studio Podcast · HVAC & 60 Hz Hum

Eliminates constant air-conditioner drones and USB preamp ground-loop buzz cleanly with zero metallic "underwater" artifacts on consonants.

Where CleanAudio Excels

  • ✓Outdoor vlogs, action-cam (GoPro / DJI), and iPhone MOV wind & street noise cleanup
  • ✓Direct MP4 / MOV / WEBM video cleanup with bit-exact 4K pass-through and lip sync
  • ✓Zoom calls, remote podcast interviews, and courses with laptop fan hum or room echo
  • ✓Extracting clean spoken dialogue or vocals out from cafe radio and background music

Honest Scope Boundaries (Not Built For)

  • —Real-time live call noise cancellation (CleanAudio is a post-production cleaner, not a live virtual mic)
  • —Multi-track music mastering or repairing clipped/distorted audio signals
  • —Single raw uncompressed cinema masters larger than 2GB or longer than 60 minutes
  • —Reconstructing words from scratch when speech is 100% drowned out beyond human intelligibility

Technical Standards & Trust Commitments

48 kHz

Full-band broadcast sample rate speech restoration

2 GB / 60m

Max file size & duration per audio or video upload

24 Hours

Automatic permanent file deletion from Cloudflare R2

0% Training

Your private recordings are never used to train AI