Audio loudness analyzer, gain adjustment, and Rekordbox playlist sorter for mastering and DJ workflows
headroom analyzes audio files for loudness (LUFS) and headroom, then applies lossless gain adjustment.
It supports MP3, AAC/M4A, FLAC, AIFF, and WAV files.
Features include batch processing, ReplayGain analysis, lossless MP3 gain via mp3rgain, lossless AAC/M4A gain adjustment, and a scriptable non-interactive CLI mode for pipelines and CI.
v2.0.0 adds the rbsort subcommand, which sorts a Rekordbox collection.xml export by Camelot Key and BPM for harmonic mixing prep — no audio touched, no ffmpeg required.
