rsgain ☆

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Description:
ReplayGain 2.0 tagging utility

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: audio replaygain normalization cli music

Install: brew install rsgain

About:
Rsgain is a command-line utility that calculates and applies ReplayGain 2.0 metadata to audio files. It supports a wide range of formats including FLAC, MP3, and Opus, enabling consistent volume normalization across music libraries. The tool is designed for speed and accuracy, making it ideal for personal and professional audio collections.

Key Features:

Supports ReplayGain 2.0 (EBU R128) and 1.0 standards
Handles multiple audio formats including FLAC, MP3, and Opus
Fast processing with multi-threading capabilities
Customizable clipping prevention and loudness targets

Use Cases:

Normalizing volume across a personal music library for playback on various devices
Preparing audio files for distribution with consistent loudness levels
Batch processing large collections of audio files for media servers

Alternatives:

mp3gain – Legacy tool for MP3 files only; Rsgain supports more formats and the newer ReplayGain 2.0 standard.
loudgain – Similar functionality but Rsgain is often considered faster and more actively maintained.

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 11:35pm		2	VERSION_BUMP	ebe13609
Oct 1, 2024 7:24pm		0	VERSION_BUMP	d434c25f