The Waves WLM Loudness Meter plug-in is designed for precise loudness measurement across various media formats such as broadcast, film trailers, games, and packaged media. It meets all current ITU, EBU, and ATSC loudness standards, ensuring accurate compliance for professional audio environments. Compatible with SoundGrid, the WLM offers Momentary, Short Term, Long Term, and True Peak readouts, providing detailed insights into audio levels throughout your project.

This plug-in features an intelligent dialog sensor that focuses on speech detection, enabling precise loudness measurements for dialogue-heavy content. It supports mono, stereo, and 5.1 surround sound formats, making it suitable for a broad range of audio productions. The WLM includes a unique warning and logging system that tracks level excursions, alerting users when audio peaks or dips outside preset thresholds. This functionality is essential for content creators, post-production facilities, and cable head-end operators aiming for consistent loudness standards.

The WLM Loudness Meter offers various controls for customizing measurements, such as adjustable short term max and min levels, target reference settings, and optional pre-filtering with low and high pass filters. It also features integration with host transport controls to synchronize measurement timing and supports detailed CSV logging for documentation and analysis. This all-in-one loudness metering solution delivers reliable, cross-platform performance that streamlines audio compliance and quality assurance in demanding production workflows.