MMAudio

MMAudio is an open-source multimodal-AI audio-synthesis engine that auto-generates perfectly synced sound effects and background music from video or text. Give any silent AI-generated footage instant, immersive audio—no manual editing required.

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AI audio generatorvideo-to-sound AItext to sound effectsync audio to videoopen-source AI soundautomatic sound designAI background musicmultimodal audio synthesis

Features of MMAudio

Video-to-audio: analyzes visuals and writes matching SFX & BGM in one click

Text-to-audio: turns a prompt like “rainy night street” into scene-ready audio

Multimodal joint training fuses video, text & audio tokens for coherent output

Conditional sync block locks every sound to the exact video frame

Lightweight Transformer runs fast on a single GPU; local install or web demo

Self-attention handles cross-modal context for realistic, scene-aware audio

Use Cases of MMAudio

Add instant soundtrack & foley to silent AI-generated videos

Auto-fill or enhance SFX/foley for films, reels and ads

Generate dynamic ambient audio that reacts to live game footage

Create spatial, real-time audio layers for VR/AR experiences

Produce narration and ambience for educational or documentary clips

Generate royalty-free scene audio from simple text prompts

FAQ about MMAudio

QWhat is MMAudio?

An open-source multimodal AI that automatically creates synchronized sound effects and background music from video or text.

QWhat can it do?

Two core modes: (1) watch a video and write matching audio, (2) read a text prompt and output scene-based sound.

QIs it free?

Yes—code and models are open-source; you can self-host or try the online demo at no cost.

QHardware requirements?

NVIDIA GPU with ≥12 GB VRAM, Windows 10/11 64-bit or Ubuntu, and a recent CUDA driver.

QHow good is the audio quality?

Output stays tightly synced to visuals; speech clarity and music stability vary—run the demo to judge your use-case.

QWhich input formats are accepted?

Standard video files for auto-dubbing, or plain text prompts for scene sound generation.

QHow do I start?

Clone the repo on GitHub, download the one-click package, or test instantly on Hugging Face Spaces.

QWho is it for?

Creators, game devs, filmmakers, educators—anyone who needs fast, royalty-free, scene-matched audio.

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