Show HN: Audio Isolation with SAM Audio for free

Runs local browser instances of Meta's SAM Audio playground so you can isolate vocals/drums from audio of any length without running SAM locally or hosting inference.

- Audio >29s is chunked with ffmpeg

- Audio chunks and prompts are submitted in parallel to the playground via Playwright

- Web UI for storing tracks and re-editing previous outputs

Demo video: https://github.com/user-attachments/assets/d5d3b53d-6ac9-40f...