MMAudio — Video to Audio & Video to SFX
Generate audio for video. Add sound effects to silent clips.
Upload a silent video and MMAudio generates audio for video automatically — video to SFX, video to sound design, and soundtracks that match the scene. For creators, animation, and game clips.
MMAudio — Generate Audio for Video & Video to SFX
Video to audio online: upload a clip and MMAudio generates audio for video — video to SFX, sound effects, and soundtracks matched to the scene. Add sound to silent videos in one click.
Reference Video
Choose File
Video file must be MP4 format, less than 10 seconds and 50MB
Or My Videos
Text Prompt For Generated Audio(Optional)
Negative prompt to avoid certain sounds (Optional)
Free generation available without login
MMAudio video to SFX examples — generate audio for video
See MMAudio generate audio for video on clips from Hunyuan, Sora, and LTX-Video. Silent or AI-made videos become video to audio with sound effects and soundtracks.
What is MMAudio?
MMAudio is video to audio AI: generate audio for video and video to SFX from silent clips, with soundtracks and sound effects that follow the picture.
What is video to audio? (Video to SFX)
Video to audio — also called video to SFX — generates audio for video from the picture itself. MMAudio watches the clip, then adds sound effects and a soundtrack so silent videos sound finished. Use it when you need generate audio for video, video to sound design, or AI that gives soundless videos audio without a foley stage.
MMAudio: generate audio for video online
MMAudio is a video-to-audio model that adds realistic sound effects and soundtracks to any video. It matches motion, scene, and timing, and you can steer the sound with a text prompt. Creators use MMAudio for film, animation, games, and social clips — video to audio and video to SFX in the browser.
How to generate audio for video with MMAudio
Video to audio in four steps: upload a clip, optionally describe the sound, generate audio for video, then download video to SFX.
Upload Your Video
Start by uploading the video file you want to enhance with sound. MMAudio supports common video formats. The model will analyze the visual content to generate context-aware audio.
Set Your Audio Preferences
Customize the audio generation with the following parameters for best results:
Model Tips:
- PromptDescribe the type of sound or atmosphere you want for your video. For example: "waves and seagulls on a beach" or "intense sci-fi battle". Leave blank for automatic matching based on video content.
- Negative PromptSpecify what you do NOT want in the generated audio. For example: "no music" or "no human voices". This helps refine the output.
- SeedSet a number for reproducible results. Use -1 for random generation each time.
- Num StepsControls the number of inference steps for audio generation. Higher values may improve quality but take longer (default: 25).
- Duration (sec)Set the length of the generated audio in seconds. Match this to your video length for best results.
Generate Audio
Click the "Generate" button. MMAudio will process your video and create a high-fidelity, temporally consistent soundtrack and sound effects that match the visual scenes and actions.
Preview and Download
Listen to the generated audio. If satisfied, download the result. You can re-run with different prompts or settings to explore creative variations.
Integrate or Share
Use the generated audio in your video projects, games, animations, or share directly on social media. MMAudio AI makes it easy to add professional sound to any video.
MMAudio video to audio & video to SFX features
Generate audio for video online: sound effects, soundtracks, and video to sound design from a silent clip.
Automatic Video-to-Audio Synthesis
- MMAudio is an advanced artificial intelligence voice generator and mm audio solution that can automatically generate audio from video. It acts as an AI that adds sound effects to video, making it easy to use AI to create sound effects and immersive soundtracks for any visual content.
Customizable Prompts & Sound Effects
- With MMAudio AI, you can use AI to create sound effects tailored to your needs. Whether you want cinematic soundtracks, realistic ambient audio, or unique AI sound effects, simply enter your prompt and let the system generate professional results.
High-Fidelity & Professional Results
- MMAudio delivers mm audio quality and high-fidelity soundtracks for videos, games, and animations. The platform is designed for creators who need an AI sound effects generator and a tool to generate audio from video automatically.
Flexible Parameters for Creative Control
- Adjust prompts, negative prompts, seed, steps, and duration to fine-tune your audio output. MMAudio AI gives you full control over the sound generation process, making it the go-to artificial intelligence voice generator for professionals.
Instant Online Demo & Integration
- Try MMAudio online and experience how easy it is to add sound effects to video using AI. Integrate the mm audio engine into your workflow for fast, scalable, and professional audio generation.
Multiple Scenarios Supported
- MMAudio AI is perfect for video creators, marketers, educators, and developers who want to use AI to create sound effects, generate audio from video, or build innovative multimedia experiences.
Who uses MMAudio to generate audio for video
Video Creators & Filmmakers
Easily add high-fidelity soundtracks and sound effects to silent or raw video footage. Perfect for YouTube, TikTok, short films, vlogs, and cinematic projects that need professional audio without manual sound design.
Animators & Game Developers
Automatically generate immersive, context-aware audio for animation sequences, cutscenes, and gameplay videos. Enhance storytelling and player experience with realistic or creative sound effects.
Content Marketers & Social Media Managers
Boost engagement on social media by making videos more dynamic and professional. MMAudio AI helps brands and agencies quickly create scroll-stopping content with custom or auto-generated sound.
Educators & Online Instructors
Make educational videos, tutorials, and e-learning content more engaging and memorable by adding relevant sound effects and background audio, all generated automatically from video scenes.
Visual Artists & Designers
Bring digital art, storyboards, and motion graphics to life with synchronized soundtracks and effects. Experiment with creative prompts to match unique visual styles.
Businesses & Entrepreneurs
Create product demos, explainer videos, and promotional content with professional sound—no need for expensive audio production. MMAudio AI streamlines the workflow for any business video.
Frequently Asked Questions about MMAudio video to audio
Have another question about MMAudio? Contact us at support@mmaudio.me
What is MMAudio?
Can MMAudio generate audio for video and do video to SFX?
How does MMAudio generate audio from video?
What types of sound can MMAudio AI create?
Do I need audio editing experience to use MMAudio AI?
Can I customize the generated audio?
What are the main use cases for MMAudio?
Is MMAudio AI suitable for commercial projects?
More Popular AI Video Generators
Explore our collection of advanced AI video generation tools
Generate audio for video with MMAudio — video to SFX online
Add sound to silent videos in seconds. MMAudio is video to audio AI: sound effects, soundtracks, and video to sound design from any clip.