Step 1
Upload your video as a reference to help the SFX generator analyze the visual context.
Effortlessly add sound effects to video from a simple description or audio upload. Ditch the tedious hunt, licensing guesswork, and manual mixing.
Create any sound imaginable by typing a description rather than searching through stale, overused stock audio libraries.
Pollo AI automatically aligns every sound effect in video with the movement on screen for perfect, cinematic timing.
Download professional, ready-to-use videos with the audio already baked in, requiring zero manual timeline adjustments.



Upload your video as a reference to help the SFX generator analyze the visual context.
Enter a text prompt describing the specific video SFX you need, such as 'thunder in distance' or 'keyboard typing'.
Click generate to add sound effects to video automatically, then download your publish-ready file instantly.

Using Pollo AI to Create and Inspire
An AI sound effect generator is a tool that creates custom audio based on your descriptions. Instead of searching a library, you tell the AI what you want, and it produces the perfect sound effect in video to match your visual scene.
You can add sound to video free by using Pollo AI. Simply sign up to access the tool, upload your clip, and describe the audio you need. You can experience the results and preview your enhanced video before upgrading your plan.
Not at all. Our AI sound effect generator is designed for 'no video editing' workflows. You don't need to drag audio files onto a timeline; our AI handles the process of how to add sound effects to video automatically based on your prompt.
Yes! You can upload your local files to Pollo AI to add sound effects to video. Once your video is in the system, the AI uses it as a reference to ensure the generated sound effects match the action on screen.
You can create almost anything! From realistic foley like 'footsteps on gravel' to abstract SFX for video like 'cinematic bass drops.' If you can describe the sound in words, our AI SFX generator can build it. These sound effects work especially well with AI voiceovers or text-to-speech narration, helping stories, ads, tutorials, and social clips sound more complete.
Yes. Every sound effect in video produced by Pollo AI is rendered in high definition. We ensure the audio is crisp, clear, and professional, making it suitable for everything from social media clips and corporate presentations to brand videos that need a consistent cloned voice across campaigns.

Bring your stories to life with custom AI sound effects that make every moment unforgettable!