Free AI Voice Isolator: Get Studio-Quality Audio for Your Projects

What is a voice isolator

A voice isolator is an AI tool that intelligently separates the human voice from all other sounds in an audio or video file. Unlike simple noise reduction, it identifies and voice isolates specific speech frequencies. It actively removes complex, overlapping noises like music, wind, and traffic.

The benefits are clear:

• Crystal-clear dialogue: Your audience can hear what's being said.
• Professional polish: Clean audio is a sign of high-quality production.
• Salvage "Unusable" footage: Rescue recordings that were too noisy.

Common uses include podcasting, vlogging, filmmaking, and cleaning up interview or meeting recordings. This AI voice isolation is now very accessible.

Top 5 online voice isolator tools to pick in 2025

CapCut online voice isolator

CapCut has evolved far beyond a simple video editor. It's now a full-fledged, web-based creative suite that's perfect for everyone, from social media marketers to professional vloggers. Just as its AI-powered white background remover can instantly lift subjects from an image, its audio tools can instantly lift a voice from a noisy background. It's the ultimate AI voice enhancer tool because it's not a separate, single-tasking website; it's built directly into the video editor you're already using, saving you time and effort. You can upload your footage, clean the audio, add text, apply effects, and export the finished video all in one place without any hassle.

How to isolate voice online using CapCut

Cleaning your audio in CapCut is seamlessly integrated into the editing process. You don't need to export your audio, clean it in another app, and then re-import it. You can do it all with a single click right on your timeline.

STEP 1
1. Upload your video

• First, make sure you're signed into CapCut.
• Hit the "Create new" button and pick the canvas size you need to start your project.
• Once the editor opens, find the "Media" button on the left panel.
• Click "Upload" to get your video file from your computer, Google Drive, or Dropbox.

STEP 2
1. Isolate vocals and enhance

• Click the video on the timeline so it's selected. The editing tools will show up on the right.
• Right-click the clip in the timeline.
• Select "Separate audio" from the menu.
• The audio will appear as a separate, editable track beneath the video.

Editing tip: After this, you can still go to the editing tab to adjust the cleanup noise, apply a voice changer, or add a fade in/out.

STEP 3
1. Export and share

• When you're happy with the result, find the "Export" button at the top right.
• A new window will open. Here, you can name your file and pick your resolution, format, and frame rate.
• Click the final "Export" button, and the system will prepare your video (or audio) for you to download or share.

Key features of CapCut's online voice isolator

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1. Free voice isolation: Got noisy audio? This tool uses AI to lift your voice out from all that background clutter like music or street sounds. You just click once, and it pulls out a clean vocal track, which is a lifesaver for fixing messy dialogue. It's a totally free way for podcasters and vloggers to get that clean, studio-quality sound.
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2. Audio enhancement: The "Enhance voice" button is like an instant polisher for your sound, making everything just better. It automatically makes your voice louder, clearer, and richer, balancing it out so it sounds more professional. This is the perfect fix for any audio that sounds a bit thin, muffled, or just uneven.
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3. Noise reduction: If you just have a constant background hum, like an AC unit or a fan, the noise remover is the one you want. It's more of a light touch than full isolation, as it just targets and gets rid of that steady background noise. It's the best way to clean up a recording made in a room that was almost quiet.
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4. Speech-to-song: This fun AI text-to-speech and voice changer tool can literally turn your spoken words into a catchy song. You just upload a voice clip, and the AI figures out your speaking rhythm to create a brand-new melody from it. It's an awesome, engaging feature for making social media content, unique intros, or just adding a creative twist to your videos.
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5. Extensive sound library: Once your voice track is clean, you can add new background music or sound effects right from CapCut's huge library. It has thousands of royalty-free tracks to pick from, all sorted by mood and genre. This means you can find the perfect sound to finish your project without leaving the app or stressing about copyright strikes.

ElevenLabs Voice Isolator

If CapCut is the versatile all-in-one studio, the ElevenLabs voice isolator is the specialized audio surgeon. ElevenLabs is renowned for its hyper-realistic text-to-speech and voice cloning, and this tool is built from the same professional-grade AI. It's designed for users who need the absolute highest fidelity in audio cleaning, often as a preparatory step before using that audio for voice cloning.

Key features

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1. Advanced AI noise removal: It doesn't just reduce noise; it intelligently strips away complex sounds like overlapping music, street chatter, and mic feedback.
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2. Precise dialogue extraction: Its AI is trained to isolate human speech with incredible precision, even in chaotic, multi-person environments.
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3. Audio quality enhancement: Beyond just removing noise, it actively removes distortion and enhances the clarity and richness of the remaining vocal track.
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4. Voice cloning preparation: It's the ideal tool for cleaning audio samples before you feed them into an AI voice cloning model, ensuring a more accurate and stable result.
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5. Browser-based workflow & API: Like other modern tools, you can simply upload your file in a web browser or, for more complex workflows, integrate its power via an API.

DaVinci Resolve (Plugin)

This option is different. It's not a quick online tool but an integrated DaVinci Resolve voice isolator plugin for professional video editors. DaVinci Resolve is a Hollywood-grade editing, color, and audio suite. The "Voice Isolation" feature is part of its Fairlight audio page and is powered by the DaVinci Neural Engine, but it is typically only available in the paid "Studio" version. For filmmakers and high-end creators already in this ecosystem, it's an indispensable, built-in tool.

Key features

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1. DaVinci neural engine AI: It uses the same powerful, GPU-accelerated AI that powers Resolve's other advanced features (like magic mask and smart reframe).
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2. Integrated fairlight tool: It's a built-in plugin directly on the Fairlight audio page, allowing for real-time adjustments and automation within your main editing workflow.
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3. Track-level and clip-level control: You can apply the effect to an entire audio track (like all your dialogue) or to individual clips in the Inspector.
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4. Real-time processing: On a modern computer, you can apply the effect and hear the results instantly as you play back, adjusting the isolation "amount" with a simple slider.
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5. Part of a professional suite: This isn't for a casual user, but for professionals who need the absolute best quality and control, fully integrated with their color grading and video editing.

LALAL.AI

LALAL.AI is a pioneer in the "stem splitting" space. Its primary function isn't just to voice isolate from noise; it's to deconstruct music. It's the go-to tool for musicians, DJs, and producers who want to separate a song into its core components: vocals, instrumental, drums, bass, piano, and more. It uses its own proprietary AI neural networks (like Phoenix and Perseus) to achieve remarkably clean separation.

Key features

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1. Multi-stem splitting: It can separate audio into as many as 10 distinct stems (Vocal, Instrumental, Drums, Bass, Electric Guitar, Acoustic Guitar, Piano, etc.).
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2. Proprietary AI networks: It runs on its own in-house AI models, which are specifically trained for musical and vocal separation, resulting in fewer artifacts.
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3. Advanced processing options: It offers features like "De-Echo" to remove reverb from vocals and "Enhanced Processing" (Clear Cut vs. Deep Extraction) to fine-tune the separation.
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4. Batch uploading: A massive time-saver, it allows you to upload and process up to 20 files at one time.
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5. Wide format support: It accepts a huge range of audio and video files, including MP3, WAV, FLAC, MP4, and MKV.

Audio.io (Audo Studio)

This web-based AI voice enhancer isolate tool is laser-focused on one type of user: the podcaster, streamer, or online course creator who needs to clean up audio fast. It's all about simplicity and speed. It's designed for users who don't want to fiddle with sliders or learn a complex interface. You upload your file, it's "magically" cleaned, and you download the result. It's the ultimate one-click solution.

Key features

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1. One-click cleaning: The primary feature is its simplicity. You upload, and the AI automatically removes noise and enhances speech.
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2. Advanced noise removal: It's highly effective at removing common podcaster-plaguing sounds like HVAC hum, computer fans, and street noise.
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3. Auto-volume leveling: A key feature for podcasters, it automatically adjusts the volume of your track for a consistent, professional, and pleasant listening level.
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4. Echo reduction (De-Reverberation): It's also adept at reducing room echo and reverb, a common problem when recording in an untreated space.
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5. Podcaster & creator focus: The entire workflow is built for speed, helping creators process and publish their content faster.

Comparing top online voice isolation tools

Pro tips for perfect results

Using these AI tools is easy, but getting a truly perfect result takes a little finesse. Here are a few quick tips to make your audio sound as professional as possible.

Background noise is no longer a deal-breaker. Thanks to AI voice isolation, fixing audio is now fast and easy for everyone, not just engineers.

While specialized tools exist for musicians (LALAL.AI) or pro filmmakers (the DaVinci Resolve voice isolator plugin), most creators need something simpler. The best solution is CapCut, as its voice isolator is built right into its free video editor. It's the perfect blend of power and simplicity.

FAQs

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1. How do I activate voice isolation on my iPhone?

Here is a quick, step-by-step guide:

• During a phone or FaceTime call, swipe down from the top-right corner to open the Control Center.
• Tap on "Mic mode."
• Select "Voice isolation."

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1. What's the best way to voice isolate a pre-recorded audio file?

For a file you've already recorded, you'll need to use one of the tools mentioned in this article. The main options are:

• Professional video software: Using a built-in plugin like the DaVinci Resolve voice isolator plugin.
• Dedicated AI platforms: Using a specialized tool like the ElevenLabs voice isolator.
• All-in-one web tools: Using an AI voice isolator like CapCut, which is the easiest and most integrated option for video creators.

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1. Can any phone use AI voice isolation?

Yes, the technology (AI voice isolation) is widely available, even if the iPhone voice isolation term is the most famous.

• On-device features: Many modern phones have similar (but differently named) features. Google Pixel phones (Pixel 7+) have "Clear Calling," and many Samsung phones offer "Voice Focus."
• For pre-recorded files: Any user, whether on voice isolation android or iPhone, can use a web tool. You can upload your file to a service like CapCut to clean it.

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1. Is iPhone voice isolation available for all apps?

This has changed over time, but it is expanding.

• Historically: It was limited to calls (Phone, FaceTime, and some VoIP apps like WhatsApp).
• With iOS 18: The feature is expanding significantly. Starting with voice isolation iOS 18, it's now available on AirPods, and Apple has made it easier for developers to build it into all kinds of third-party apps, including audio and video recorders, not just calling apps.