Upload your vocal and instrumental. Our AI applies multiband sidechain ducking, glue compression, and \u201314 LUFS normalization \u2014 delivering a polished, radio-ready mix in seconds.
No credit card required
Hear the difference
Click each step to hear the transformation. Step 3 is what you get \u2014 automatically.
This is what you upload — a raw vocal take recorded at home or in a studio.
Built for creators who ship
Mix your vocals over any beat and sound release-ready in minutes — no mixing engineer needed.
Clean voiceovers over music beds for YouTube, TikTok, and podcasts with automatic ducking.
Add polished vocal demos to your beat packs. Fast, consistent, commercial-quality mixes.
The technology
Intelligent sidechain compression that carves space for your voice without pumping the beat. Used by 100,000+ creators.
EBU R128 loudness normalization to –14 LUFS — the exact standard for Spotify, Apple Music, and YouTube.
Frequency-specific ducking that only affects the mid-range where vocals sit — bass and treble stay untouched.
Gentle glue compression and soft limiting for cohesive, broadcast-ready masters that compete commercially.
MP3, WAV, FLAC, AAC, OGG — any format, any duration. Support for files up to 5GB via multipart upload.
Export in lossless FLAC, WAV 24-bit, MP3 320kbps, AAC, or Ogg Vorbis at studio-grade quality.
Simple workflow
Drop in your vocal recording and instrumental. Any format — MP3, WAV, FLAC, or more.
Our engine applies multiband ducking, glue compression, and loudness normalization automatically.
Download your finished mix in hi-res format. Ready for streaming platforms or distribution.
Trusted by independent artists worldwide
"Finally I can release music without paying for studio time. The AI ducking is insane."
\u2014 Independent rapper
"I use this for every YouTube video. Voice-over mixing used to take hours."
\u2014 Content creator
"My beat demos sound professional now. Clients are way more interested."
\u2014 Beatmaker
Join thousands of creators using autoduck.io for release-ready mixes.
No credit card required \u00b7 Free forever for basic use