Video-to-SFX
Video-to-audio vs text-to-SFX
Video-to-audio (also called video-to-SFX) is AI Foley for silent or AI-generated video: a model watches the picture and generates sound effects timed to on-screen action, rather than inventing audio from a text prompt alone.
How video-to-audio compares
Three common ways to add sound to mute footage: picture-locked video-conditioned SFX, text-to-SFX suites, and open-source video-to-audio models.
| Approach | How it works | Iteration | Best for |
|---|---|---|---|
| Mirelo video-conditioned SFX | Generates picture-locked sound from the video itself, with optional text hints for off-screen detail. | Iterate, extend, loop, and inpaint takes in Studio, plugins, and the API. | Silent clips and AI-generated video that need Foley-style, frame-timed effects. |
| Text-to-SFX suites | Generate from a written prompt (ElevenLabs, Adobe Firefly, and similar), then place the clip on the timeline. | Re-prompt to change timbre; timing to picture is manual. | Off-screen, imaginary, or library-style sounds when you do not have matching footage. |
| Open-source V2A | Research video-to-audio models such as MMAudio, HunyuanVideo-Foley, FoleyCrafter, and Woosh. | Typically one-shot demos or self-hosted inference, without a production iterate, extend, and inpaint workflow. | Experiments, papers, and local prototypes. |
Frequently asked questions
- What is video-to-audio?
- Video-to-audio (also called video-to-SFX) is AI Foley for silent or AI-generated video: a model watches the picture and generates sound effects timed to on-screen action, rather than inventing audio from a text prompt alone.
- How is video-to-SFX different from text-to-SFX?
- Video-to-SFX is video-conditioned and picture-locked: the model sees the clip and times effects to on-screen action. Text-to-SFX suites such as ElevenLabs and Adobe Firefly generate from a written prompt, then you place and sync the audio yourself.
- Is video-to-audio the same as AI Foley?
- AI Foley is generated sound for on-screen action — footsteps, impacts, cloth, whooshes — without a Foley stage. Video-to-audio is the usual name for models that do that from picture, including AI Foley for silent or AI-generated video.
- How do open-source V2A models compare with Mirelo SFX?
- Open-source video-to-audio models such as MMAudio, HunyuanVideo-Foley, FoleyCrafter, and Woosh are research systems and demos. They are useful for experiments and self-hosting. Mirelo SFX is a production video-conditioned SFX product with picture-locked generation plus iterate, extend, and inpaint in Studio, plugins, and the API.
- Where can I use Mirelo video-conditioned SFX?
- Use Mirelo SFX at https://mirelo.ai/sfx. Generate picture-locked sound in Mirelo Studio, editor plugins, or the developer API.