MMAudio vs Pixazo AI SFX Generator

MMAudio generates audio from video or text, with a synchronization module that aligns generated sound to video frames. Its command-line demo and Gradio interface support video-to-audio and text-to-audio generation. The interface also has an experimental image-to-audio mode: the model was not trained for image input, and the demo turns a still image into a video for processing. The project is free, with repository code under the MIT license and pretrained checkpoints under CC-BY-NC 4.0. It runs on Linux or in a self-hosted setup. Installation calls for Python 3.9 or later and PyTorch 2.5.1 or later, with corresponding torchvision and torchaudio; the project says it has only been tested on Ubuntu. In the default large_44k_v2 configuration, inference in 16-bit mode uses around 6 GB of GPU memory. The demo saves audio as FLAC and video as MP4, with an eight-second default duration. Output may include unintelligible speech-like sounds or background music, and unfamiliar concepts can be difficult for the model.

Pixazo AI SFX Generator creates short sound effects from text prompts and can also match audio to an uploaded video clip. Text-to-audio uses Mirelo SFX, while video-to-audio uses MMAudio. It can produce one-shot effects, foley, game and UI sounds, and loopable ambiences, with results downloadable as WAV files. Generation and downloads happen in a browser; no separate audio software is required.

The Free plan costs nothing and gives 100 bonus credits during a 7-day trial. Those credits lapse after the trial, which has no API access or commercial rights. Pro Monthly is 37.50 BRL a month, and Pro Yearly is 299 BRL a year; both list 300 credits per month and commercial rights. API billing is pay per call in USD, with a free tier and a separate account from Pro. Pixazo describes RESTful APIs for app and workflow integration. The tool is intended for video editors, game developers, motion and UI designers, podcasters, and app makers. It does not make full songs or offer multi-track mixing, and specific or branded sounds may need prompt refinements. Commercial use depends on plan terms.