Waves WLM Plus Loudness Meter

Plug-in loudness level meter for broadcast and postproduction

• Compatible with all standards: ITU-R BS.1770, EBU R128, ATSC A/85
• Momentary, short- and long-term LUFS measurements
• Built-in True Peak limiter and Gain Trim control
• Supports 5 different weightings and 5 momentary scales
• Log files exportable in CSV format
• Presets for streaming, broadcast and cinema platforms

Loudness always under control, in any professional context

Waves WLM Plus is the ultimate plug-in for controlling and managing loudness in modern workflows: broadcast TV, streaming platforms, podcasts, YouTube, advertising and film post-production. It ensures full compliance with international standards and includes tools for output level correction.

Comprehensive measurement and operational versatility

Multi-standard compatibility

WLM Plus complies with ITU-R BS.1770-3, EBU R128 and ATSC A/85 protocols. You can monitor momentary, short-term, integrated, and True Peak LUFS for any type of content.

More analysis methods, more accuracy

Choose from several measurement modes: standard EBU, LM1 method for overall loudness, or DIAL for content with predominant dialogue. Weightings are based on Fletcher-Munson curves for more realistic perception.

Built-in signal control

Correct levels directly within the plug-in with True Peak limiter and Gain Trim. WLM Plus helps you avoid transcoding distortion and maintain a controlled, professional output.

Accurate reports and ready-to-use presets

Use platform-specific presets for major platforms or save CSV reports of your metering. Ideal for ensuring compliance throughout the production chain.

Technical Specifications.

Mac compatibility:

• macOS Catalina 10.15, Big Sur 11, Monterey 12, Ventura 13, Sonoma 14
• Memory: 8 GB
• Disk space: 16 GB
• CPU: Intel or Apple Silicon
• Plug-in formats: VST3, AU, AAX

Windows compatibility:

• Windows 10 (64 bit), Windows 11
• Memory: 8 GB
• Disk space: 16 GB
• CPU: Intel or AMD x64 compatible
• Plug-in formats: VST3, AAX