How it works
- Drop your voice track. MP3, WAV, FLAC, AIFF, OGG or M4A up to 500 MB — the episode is processed locally, nothing is uploaded.
- Pick the music. Choose one of the 48 built-in ambiances (corporate, pop, lo-fi, soul, cinematic…) or upload your own music file (up to 200 MB).
- Set the ducking and export. Choose the ducking intensity and the music level, then bounce the mix to MP3, WAV, FLAC, OGG or M4A.
Features
- 48 built-in music beds. Nine moods to browse — corporate, tech, pop, urban, chill, soul/funk, house, acoustic and cinematic — ready to sit behind your voice.
- Real sidechain ducking. The music is compressed by your voice signal, exactly like on a radio console: it dips when you speak and comes back in the gaps — three intensities to pick from.
- Music handled for you. The bed loops automatically to cover the whole episode, fades in softly at the start and fades out at the end.
- Optional: shorter pauses. Turn on “Shorten long pauses” to bring every pause longer than 0.5 to 2 s (your choice) down to that length, without cutting a word. The episode gets shorter; the option is off by default.
- Mixed in your browser. The mix is rendered locally with ffmpeg.wasm — your episode stays on your machine, unless you turn on Enhance with AI, which sends the voice track to our server.
FAQ
Is this podcast mixer free?
Yes. Without an account you get 2 free uses per day across AudioKit's free tools; with a free account, 5 per day. A use is only counted when you bounce the final mix; loading files and adjusting settings is free. AudioKit Premium removes the daily limit.
Is my episode uploaded to a server?
Not by default. Your voice track and the music are mixed entirely in your browser with ffmpeg.wasm and stay on your machine; the only network call is a tiny anonymous counter that tracks your daily free quota. The one exception is the optional Enhance with AI (Premium): when you turn it on, the voice track is sent to our server to be cleaned up, then sent back.
What background music is included?
48 instrumental beds organized in nine moods: corporate, tech/startup, pop, urban, chill/lounge, soul/funk, house, acoustic/piano and cinematic — each with a few variants, so intros, interviews and outros can breathe differently. You can also upload your own music file (up to 200 MB) instead.
How does the automatic ducking work?
It is real sidechain compression, not a fixed volume cut: your voice feeds the compressor that controls the music, so the bed dips the moment you speak and swells back in the pauses. Three intensities are available — light, medium and strong — plus a music level slider (−30 to 0 dB) to set how present the bed is overall.
Which export formats are available?
MP3 (192 kbps), WAV (16-bit), FLAC, OGG and M4A (AAC 192 kbps), all at 44.1 kHz stereo. MP3 is the safe choice for publishing to podcast platforms; pick WAV or FLAC if you plan to edit the episode further afterwards.