Show HN: Headroom – Loudness normalizer and Key+BPM playlist sorter for DJs

Category: cli-tool

Tags: djing, loudness-normalization, audio-processing, rekordbox, cli

Score: 6.8/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 6)

Headroom is a CLI tool for DJs that normalizes loudness without using a limiter and sorts Rekordbox playlists by Camelot key and BPM. It solves the real-world problem of Rekordbox's Auto Gain not persisting to CDJs and offers a novel approach to gain adjustment for lossy formats with multiple processing tiers. Its utility is niche but valuable for DJs who want consistent loudness and harmonic mixing preparation.

Target audience: DJs and music producers who use Rekordbox and CDJs

Repository: https://headroom.ravers.workers.dev/ · Rust · MIT · 20 stars

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