WLM Plus

Utility
Waves

WLM Plus is a professional loudness metering plugin fully compliant with ITU, EBU, and ATSC broadcast standards, providing precise loudness measurement across multiple timescales with an integrated ITU-compliant True Peak Limiter for automatic loudness normalization.

Key Features

  • Momentary, Short Term, Long Term, and True Peak loudness measurements in LUFS/LKFS
  • ITU-compliant True Peak Limiter with automatic threshold and Gain/Trim controls for loudness normalization
  • Three measurement methods: EBU (foreground audio anchor), LM1 (whole program), and DIAL (dialog detection)
  • Real-time and offline CSV logging with warning counters for Overs/Unders violations
  • Multiple weighting filters including ITU-R B.S.1770 K-Weighting and Leq(a/b/c/m) options
  • Custom pre-filtering with configurable low-pass and high-pass filters for device-specific content
  • Loudness Range descriptor and automation warning integration for precise compliance tracking
  • Available in Mono, Stereo, and 5.0/5.1 multichannel configurations
Official Website

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