Provides nearly everything required for loudness analysis, rivaling some paid options.
Here is a review of its features, pros, and cons based on available information. Overview & Key Features
Fully compliant with EBU R128 and ITU-R BS 1770-3 standards.
Offers 64-bit processing with support for high sample rates (192kHz or higher) and fast algorithms optimized for modern CPUs. It is free: Part of the massive MFreeFXBundle .
The default target may need manual adjustment (e.g., from -23 LUFS to 0 LUFS) to align with specific mastering requirements or other meters.