master-cli: offline audio mixing and mastering command‑line tool
master-cli lets you mix multiple stems, apply EQ, compression, and Spotify Pedalboard effects, then run a full mastering chain with LUFS normalization and limiting, all from the terminal. It supports JSON‑based job files for easy automation and LLM integration, and can output WAV, FLAC, AIFF, MP3, AAC, or M4A. Designed for producers and engineers who need fast, scriptable batch processing without a full DAW, it offers built‑in presets and detailed reports that set it apart from generic audio converters.
View on GitHub →dolphin-electric/master-cli