AudioGen vs Pixazo AI SFX Generator

AudioGen is a text-to-sound model provided through AudioCraft. It generates audio samples from text descriptions and can continue from an audio prompt, with conditional and unconditional generation modes. Sampling controls include greedy, temperature, top-K, and top-P methods. The listed pretrained model, facebook/audiogen-medium, has 1.5 billion parameters; the example API generates sound and saves it as WAV. The implementation uses an autoregressive Transformer and a 16 kHz EnCodec tokenizer. The repository provides API access and a local Jupyter notebook demo. Running the medium model locally requires a GPU with at least 16 GB of memory; installation requires Python 3.9 and PyTorch 2.1.0, with ffmpeg recommended. The model was trained on English descriptions and performs less well in other languages. It cannot generate realistic vocals, and prompts may need refinement. Code is MIT-licensed, while weights use CC-BY-NC 4.0; training datasets are not provided. The listed self-hosted plan is free.

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.