AI Video Sound Generator
Upload a video and get it back with a sound track that matches what is on screen. MMAudio v2 watches the clip, reads your description and generates foley, ambience or music synced to the action — no audio editing required.
Silent Video In, Finished Video Out
Most AI-generated video comes out mute — and a mute clip feels unfinished. Wandura runs your clip through MMAudio v2, which analyzes the visuals together with your text hint and composes a matching track: footsteps, rain, engine hum, crowd noise or a music bed. You choose the direction with a sound type — Foley, Ambience, Music, or Auto to let the model decide — and get the same video back with audio baked in, at $0.001 per second of footage. The pair here is a real generation — the silent source clip and the scored result (browsers mute autoplaying video, but the actual output carries the generated music and foley).
Try AI Video Sound Generator1 AI Model, One Auto Sound Tool
Bring AI-Generated Video to Life
Clips from Text to Video or Image to Video are born silent. Chain them straight into this tool, describe the scene sound in a few words, and publish a clip that sounds as real as it looks — the generated example here is a Text to Video clip scored exactly this way (download it to hear the track, since autoplay previews are muted).
Try AI Video Sound GeneratorFoley for Filmmakers and Editors
Recording footsteps, cloth rustle or door creaks by hand is a craft of its own. Pick the Foley sound type, describe the physical action — "boots on gravel, keys jingling" — and the model syncs effect timing to the motion in the frame.
Try AI Video Sound GeneratorAmbience Beds for Any Scene
A street scene needs traffic; a forest needs birds and wind. The Ambience type generates a continuous environmental bed that matches the setting on screen, turning sterile footage into a place that feels inhabited.
Try AI Video Sound GeneratorFast Music Beds for Social Clips
Choose the Music type and describe a mood — "upbeat lo-fi, light percussion" — to score product demos, B-roll and short-form posts without hunting through stock libraries or worrying about licensing a track.
Try AI Video Sound GeneratorCheap Enough to Iterate
At $0.001 per second, a 10-second clip costs a cent per attempt. Run the same video with different descriptions and sound types, compare the takes from your Creations, and keep the one that fits.
Try AI Video Sound GeneratorHow It Works
Step 1: Upload Your Clip
Add the video that needs sound — an AI generation, a phone recording or an edit export.
Step 2: Describe the Sound
Write what you want to hear ("footsteps on gravel, distant traffic") and pick a sound type: Auto, Foley, Ambience or Music.
Step 3: Generate
The model returns your video with the generated track already attached, saved to your Creations.
How Much Does AI Video Sound Generator Cost?
Every model below runs on one Wandura credit balance — pay only for what you generate, with no separate subscription per model.
| Model | Pricing |
|---|---|
| MMAudio v2 | Add a sound track to a clip |
FAQs
It adds a generated sound track to an existing video. The AI looks at what happens in the clip, combines that with your text description, and produces audio — sound effects, ambience or music — synchronized to the footage.
A video. The output is your original clip with the generated sound track attached, ready to download or send into another video tool. If you need standalone audio, use Music Generation or Text to Speech instead.
MMAudio v2, a video-to-audio model that reads both the visual content and your prompt, so the generated sound follows the timing of the action on screen.
They steer the generation: Foley focuses on physical action sounds, Ambience on environmental background, Music on a musical bed. Auto lets the model pick from your description alone — the type is added as a hint in front of your prompt.
MMAudio v2 is priced at $0.001 per second of video, shown next to the model name in the widget. A 30-second clip costs about $0.03, and credits are deducted only when you generate.
It is optional but recommended. Without one the model infers sound purely from the visuals; a short hint like "heavy rain on a tin roof" reliably pulls the result in the direction you want.
The model produces a standard sound track for your clip; there is no separate stereo toggle. What you hear in the preview is exactly what you download.
Music Generation creates a standalone audio file from text only. This tool starts from a video and generates sound that matches its content and timing, returning a finished video. Use Music Generation for a track, this tool to score a specific clip.
Every generation lands in your Creations library, where you can preview, download, or chain the clip into another tool — extend it, upscale it or run further edits.