AI Sound Effects Generator for Videos

Upload an MP4 or MOV clip, describe the audio you want, and add AI sound effects or ambient audio to short videos online.

Upload Video

Click to upload or drag and drop

MP4, MOV, AVI, WebM (max 100MB)

Describe Sound Effects

Audio generation supports videos up to 8 seconds in length

Original Video

Prompt

Sound effect of deep underwater.

Enhanced with Audio

Prompt

Sound effect of deep underwater.

Original Video

Prompt

Sound effect of wine pouring into a glass.

Enhanced with Audio

Prompt

Sound effect of wine pouring into a glass.

How to Add Sound Effects to Short Videos

Our AI analyzes your video frame by frame to identify moments that need sound. Whether it is a busy city street or a quiet nature scene, the sound effect generator adds audio that fits the context.

1. Upload Your Video
Start by uploading your video file or choose from the video gallery. The tool works with MP4 and MOV clips for short-form content.
2. Describe Your Audio
Tell us what audio you want to add to your video - from background music to custom sound effects. Be as specific as you like.
3. Preview and Download
Listen to your custom audio, make adjustments if needed, and download your enhanced video.

Why Choose iMideo AI Sound Effects Generator?

iMideo lets you add sound effects that match visible actions, scene mood, and pacing. For silent generation before sound design, start with text to video AI or image to video.

High-Quality Audio Library

Generate sound effects, ambience, and simple audio layers that fit your prompt and scene context, from footsteps and whooshes to nature sounds and product-action cues.

Smart Audio Mixing

The AI balances generated audio against the clip's rhythm and visible action, helping the added sound feel connected to the video instead of pasted on top.

Fast Audio Generation

Generate audio for short clips without manual sound editing. Processing time varies by video length, prompt detail, and current queue load.

Easy-to-Use

You do not need to be an audio engineer to improve video sound. With iMideo, adding SFX is as simple as uploading a video and choosing the audio direction.

Works for Common Short-Form Video Types

Use the AI sound effects generator for TikToks, Reels, YouTube Shorts, product demos, ads, travel clips, real estate tours, and silent b-roll.

Precision Audio Control

Use a specific prompt to describe timing, mood, and sound types, such as soft footsteps, city ambience, camera whoosh, rain, crowd noise, or cooking sounds.

What Creators Say About AI Sound Effects

Jake P.

TikTok Creator

Had a silent video of my skateboard trick. Added whoosh sounds and a landing thud. The edit finally had the impact the footage was missing.

Emma R.

YouTube Shorts Creator

My cooking clips were too quiet and boring. Added sizzle sounds, chopping noises, and pan clanks. The videos feel more watchable now, and people actually stay for the payoff.

Marcus L.

Small Business Owner

Product demos looked cheap without audio. This tool added clean product sounds without a separate edit session. Customers said the videos felt more polished.

Nina K.

Content Marketing Manager

We had 50 silent b-roll clips from a photoshoot and needed audio directions for all of them. Processing the batch was much faster than manual sound editing.

Liam T.

Indie Game Dev

Game trailer footage had no audio. AI added explosions, footsteps, and ambient sounds. The trailer felt more complete after we posted the version with sound.

Sofia M.

Real Estate Agent

House tour videos were just silent walkthroughs. Added door creaks, footsteps, and soft background ambience. Clients said it made properties feel more lived-in.

Chris H.

Travel Vlogger

Shot drone footage but forgot to record audio. This tool added wind, waves, and nature sounds, so the final edit felt less empty.

Frequently Asked Questions

Everything you need to know about adding AI-generated audio to your videos

1What is an AI sound effects generator for video?

An AI sound effects generator for video analyzes a clip and creates matching audio from your prompt, such as footsteps, ambience, whooshes, product sounds, nature audio, or simple background sound. It is useful when a short video was recorded silently or needs extra audio cues for social media.

2What video formats work when adding audio?

When adding audio to video, iMideo supports MP4 and MOV uploads. The upload limit is 10MB to keep processing stable for short-form clips.

3How long does it take to add audio to my video?

Adding audio to video usually takes about 10-30 seconds for short clips. The AI generates up to 8 seconds of audio, and processing time can vary with queue load and source video complexity.

4Does video resolution affect the audio quality?

No. Audio generation is based on your prompt and video content, not the output resolution. If your final video also needs visual cleanup, use the AI video upscaler after adding sound.

5Can I add specific sound effects to certain video moments?

Currently, when adding audio to video, the system generates a complete audio track. For best results, describe the specific sounds you want at different moments in your video prompt.

6What happens to my video after adding audio?

Your videos are processed securely when adding audio. We recommend downloading your enhanced video promptly after generation as files are only stored temporarily.

7Can I add both music and sound effects together?

Yes, you can add multiple audio elements to your video simultaneously. Simply describe both the background music and sound effects you want in your prompt.

8How many credits does audio generation cost?

Each audio generation costs 3 credits (fixed rate).