Simply upload your video and Effct's AI analyzes it frame by frame, identifying scenes, dialogue, and actions. It then generates and syncs appropriate sound effects, enhances your dialogue audio, and creates a professional mix—all automatically.

Where do you get your sound effects?

We use a blend of proprietary sounds our team has recorded and sound effects with a CC0 license, ensuring high-quality audio that's fully cleared for your projects.

What video formats do you support?

We support all major video formats including MP4, MOV, AVI, and MKV. Videos can be up to 4K resolution. The maximum project length is 20 minutes—if you upload a longer video, it will automatically be split into 20-minute sections for processing.

Can I customize the generated sounds?

Yes! Use our Timeline editor to regenerate any sound you're not happy with, adjust the mix levels, add new sound effects, or remove sounds entirely. You have full control over the final result.

What export options are available?

Depending on your plan, you can export a full mix (MP3/WAV), individual stems (dialogue, music, SFX, ambience), or an AAF file with separate tracks for import into professional editing software like Premiere Pro or DaVinci Resolve.

How long does processing take?

Processing time typically takes 0.75-1.5x the video length, so a 2-minute video usually finishes in 1.5-3 minutes. You'll receive a notification when your project is ready.

Is my content secure?

Absolutely. Your videos are encrypted during upload and processing. We don't share your content with third parties, and you can delete your projects at any time. We never use your videos or uploaded content for model training.

AI-powered sound effects for ads, promos, and branded content

Commercial sound design, done before the client calls back

Commercial timelines are tight. Your client wants three rounds of revisions by Friday, and you haven't even started on audio. Effct analyzes your commercial footage frame by frame — identifying product reveals, transitions, and emotional beats — then places studio-grade sound effects that are already synced. What used to eat an afternoon now takes minutes. Upload your cut, pick a mood, and get back to the creative work that actually needs you.

Try Effct free

The problem — and how Effct solves it

Tight turnarounds with no time for manual sound design

AI processes your video in minutes, not hours — meet any deadline

Clients expect broadcast-quality audio on indie budgets

Studio-grade sound from a curated library of professional effects

Searching through stock SFX libraries takes hours

AI selects the right sounds for each scene automatically

Syncing sounds to quick cuts and transitions is tedious

Frame-accurate sync means every hit lands exactly on the cut

Recommended Preset

Start with Cinematic

Commercials demand impact. The Cinematic preset emphasizes bold transitions, punchy hits, and dramatic story beats — exactly what makes a 30-second spot land.

Not quite right? Choose from 8 mood presets during project setup, or describe your vision in your own words.

Frequently asked questions

Can Effct handle fast-paced commercial edits?

Yes. Effct's AI detects scene changes, quick cuts, and transitions at the frame level. It places sounds precisely on each edit point, even in rapid-fire montage sequences common in commercials.

What sound design style works best for commercials?

It depends on the brand. The Cinematic preset works great for product launches and hero spots. For lifestyle or food commercials, try Natural or Minimal. You choose the mood before processing, and the AI adapts its creative decisions accordingly.

Can I export stems for my audio engineer?

Yes. Effct exports individual stems (dialogue, SFX, ambience) and AAF files compatible with Premiere Pro and DaVinci Resolve, so your audio team can refine the mix in their DAW of choice.

Ready to try it?

Upload your first video free — 3 minutes of AI sound design, no credit card required.

Get started free

Commercial sound design, done before the client calls back

The problem — and how Effct solves it

Start with Cinematic

Frequently asked questions

Can Effct handle fast-paced commercial edits?

What sound design style works best for commercials?

Can I export stems for my audio engineer?

Ready to try it?

Related use cases

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AI Sound Effects for Social Media Videos

AI Sound Design for Trailers