No. 15 of 28 ·AI Sound Effect Generators

MMAudio

Linux · Self-hosted

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Freedom report

One barScore 5.3

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

MMAudio is ranked #15 of 28 in AI sound effect generators on Freedom251. It runs on Linux, Self-hosted.

Compared on AI sound effect generators

Text-to-sound: Yes
Download formats: other
Commercial use: restricted

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The record

Purpose: MMAudio generates synchronized audio from video and/or text inputs.
Synchronization: Its synchronization module aligns generated audio with video frames.
Generation modes: The command-line demo supports video-to-audio and text-to-audio generation.
Interface: The project provides a Gradio interface for video-to-audio and text-to-audio, with experimental image-to-audio support.
Image limitation: Image-to-audio is experimental and the model was not trained for it; the demo duplicates the image into a video for processing.
Runtime requirements: Installation requires Python 3.9+ and PyTorch 2.5.1+ with corresponding torchvision and torchaudio; the project says it has only been tested on Ubuntu.
Hardware: The default large_44k_v2 model uses around 6 GB of GPU memory for inference in 16-bit mode, according to the project’s experiments.
Output and duration: The demo saves audio as FLAC and video as MP4, and its default output and training duration is 8 seconds.
Input processing: The CLIP encoder resizes frames to 384×384 pixels, while Synchformer resizes the shorter edge to 224 pixels and center-crops each frame.
Known limitations: The model may generate unintelligible speech-like sounds or background music and may struggle with unfamiliar concepts.
Licensing: The repository code is MIT licensed, while pretrained checkpoints are released under CC-BY-NC 4.0.
Demos and integrations: The repository links to Hugging Face and Colab demos and a Replicate demo.
Support: The project invites users to open a repository issue if they notice a failure mode or believe there is a bug.

Where it ranks on Freedom251

Best AI Sound Effect Generators in 2026#15 of 28

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Sources

github.com/hkchengrex/MMAudio· checked 4 Oct 2026