Voice Isolator · 100% On-Device · One-Time Purchase
Voice Isolator for Mac, Keep the Voice, Drop Everything Else.
Neural voice isolation separates speech from the world around it: traffic, crowds, wind, machinery, room rumble.
The voice stays natural. Everything else disappears. 100% on-device.
No uploads. No subscription required.
macOS 14+ · Apple Silicon & Intel
Where voice isolation saves a recording
Some recordings cannot be redone. When the only take you have is buried in noise, isolation recovers it.
Field & street recordings
Interviews recorded outdoors, on location, or on the move. Traffic, wind, and crowd noise are separated out while the voice stays intact.
Busy rooms
Cafes, conference floors, events, open offices. Chatter and clatter behind the speaker are stripped away, and every actual speaker is kept.
Video dialogue
Drop MP4 or MOV files straight in. The dialogue is isolated on the audio track and exported back inside the video, no round-trip to another tool.
How AI voice isolation works
The model knows speech
A neural network trained on thousands of hours of voice learns what human speech looks like across the frequency spectrum.
Speech is separated
Frame by frame, everything that matches speech is kept and everything that does not, traffic, crowds, wind, hum, is removed.
On your Mac's Neural Engine
The whole pipeline runs on-device. A 30-minute recording processes in under 3 minutes on Apple Silicon, with nothing uploaded.
You verify the result
A/B the original and isolated voice side by side, loudness-matched, then export MP3, WAV, M4A, FLAC, or AIFF.
Voice isolation, not music stem splitting
"Voice isolator" means two different things online. Aulio Studio does the first one, and does it entirely on your Mac.
✅ What Aulio Studio does
Isolates spoken voice from background noise in real-world recordings: interviews, podcasts, lectures, video dialogue, field audio. All speakers are preserved.
❌ What it does not do
It does not split singing from instruments in a music track, and it does not separate individual speakers onto their own tracks. For speech vs noise, it is the right tool.
More than isolation
Isolation is one pass of a full cleanup pipeline. Once the voice is separated, Aulio Studio can polish it in the same run.
Speech separated from constant and sudden background noise, on-device.
Birds, dogs, horns, and clicks caught even when they overlap the voice.
Optionally cut "um", "uh", and repeats from the isolated voice, with review.
Publish-ready levels: Podcast −16 LUFS, Streaming −14, Broadcast −23.
A transcript of the isolated speech in 99 languages, exported as TXT, PDF, or DOC.
Source interviews and legal recordings never leave your Mac. No cloud, no server.
Voice isolator FAQ
How does AI voice isolation work?
A neural network trained on thousands of hours of speech learns what a human voice looks like across the frequency spectrum. It keeps everything that matches speech and removes everything that does not: traffic, crowds, music beds, wind, machinery. Aulio Studio runs this network directly on your Mac's Neural Engine.
Can it isolate vocals from a music track?
No. Aulio Studio isolates spoken voice from background noise. It is not a music stem splitter for separating singing from instruments. For interviews, podcasts, videos, and field recordings with speech, it is exactly the right tool.
What happens with multiple speakers?
All speech is preserved. The isolator separates speech from non-speech, so a two-person interview keeps both voices while the cafe noise behind them disappears. It does not split individual speakers onto separate tracks.
Can I isolate the voice in a video?
Yes. Drop an MP4 or MOV into Aulio Studio and it isolates the voice on the audio track. Export the isolated audio on its own or the full video with the cleaned track in place.
Is my recording uploaded anywhere?
No. Isolation runs 100% on-device. Nothing is uploaded, which matters for journalist source recordings, legal audio, and client work. There is a free 10-day trial with no credit card required.
Related tools & guides
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No credit card · one-time purchase · 100% on-device
Download on the Mac App Store