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.
