WLM Plus Loudness Meter by Waves plugin interface showing LUFS and True Peak readings

WLM Plus Loudness Meter: LUFS and True Peak Metering Plugin by Waves

WLM Plus Loudness Meter is a loudness metering plugin from Waves that provides momentary, short-term and long-term LUFS readings, along with True Peak measurement and a built-in limiter and gain trim.

VST2AUAAXWindowsmacOS

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01Overview

WLM Plus Loudness Meter is built for producers who need their mixes to meet level targets for streaming, broadcast and other delivery platforms. Its readings cover momentary, short-term and long-term LUFS, plus True Peak values that help flag potential distortion from transcoding. A True Peak limiter and gain trim let you adjust output levels within the plugin, and the meter can log results so you can document a mix's measurements.

Best for

Streaming loudness checks
Podcast level compliance
Broadcast delivery metering
Film trailer mastering
Game audio levels
Commercial loudness targets

Developer: Waves
Category: Utilities
Store: Plugin Boutique

02Key features

What you get

Meets the critical requirements of all streaming platforms
True Peak readings to reduce risk of transcoding distortion
Momentary, short-term and long-term LUFS readings
LU reading for an indication of dynamic range
True Peak limiter and gain trim for output control
Five selectable momentary scales
Five weighting options, or no weighting
Custom high-pass and low-pass pre-filtering

03In depth

Loudness Metering for Streaming and Broadcast Delivery

WLM Plus is designed to help you check that audio meets the critical requirements of streaming platforms. Waves states that it is intended for music, podcasts, online video, games, broadcast, film trailers and commercials.

The meter shows momentary, short-term and long-term LUFS readings, so you can judge loudness over different time windows. The LU reading gives an indication of dynamic range, which helps when comparing how a mix sits against a delivery target.

Precision Output Control and Metering Options

Beyond measurement, WLM Plus includes a True Peak limiter and gain trim for controlling output level precisely. Its True Peak readings are meant to minimize the risk of distortion introduced during transcoding.

You can choose from five momentary scales and select one of five weightings or none. Custom high-pass and low-pass pre-filtering lets you shape the signal that feeds the measurement.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Waves
Type	Plugin
Category	Utility
Formats	VST2, AU, AAX
Operating systems	Windows, macOS

05FAQ

Questions, answered

What formats does WLM Plus Loudness Meter support?

WLM Plus Loudness Meter is available in VST2, AU and AAX formats.

Which operating systems can run WLM Plus Loudness Meter?

It runs on Windows and macOS. The listed system requirements include macOS Monterey 12, Ventura 13, Sonoma 14 and Sequoia 15, and Windows 10 or later. On PC, the plugin is listed for VST and AAX formats.