BUTE Loudness Analyser 2

The BUTE Loudness Analyser 2 is a metering plugin built specifically for the compliance-driven demands of modern audio production. Rather than offering generic level reading, it provides the precision measurement infrastructure that post-production workflows require when meeting broadcast, streaming, or delivery specifications.

The plugin's core strength lies in its implementation of loudness standards across multiple formats. It includes presets for LUFS-based measurements ( ITU-R BS.1770, EBU R128 ), traditional RMS metering, true peak analysis, and short-term and momentary loudness windows. This breadth of measurement options means a single tool can address specifications from streaming platforms like Spotify and YouTube through to broadcast regulatory requirements. The meter readings are genuinely accurate, reflecting the high-precision algorithms Signum Audio has developed across its loudness suite.

For workflow efficiency, the plugin distinguishes itself through practical features aimed at long-form content. Automatic re-metering allows continuous monitoring without manual intervention, while customizable warnings alert you before hitting specification limits. Session data can be reloaded for project recall, and an interactive navigation overview helps identify problem areas within extended files - invaluable when mastering podcasts, audiobooks, or film soundtracks.

The interface itself is clean and information-dense without becoming overwhelming. This is a tool that assumes competence from the user rather than hand-holding through unnecessary simplification.

Suitable for mastering engineers, broadcast technicians, and post-production professionals working within specification-heavy environments, the BUTE Loudness Analyser 2 functions as an essential reference standard rather than an optional addition to a chain.