WLM Plus Loudness Meter review
A standards-focused loudness plugin for production across major DAWs.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
WLM Plus Loudness Meter is an audio plug-in for measuring and controlling loudness in music, podcasts, video, broadcast, movie trailers, games and other media. It is designed for producers, engineers and post-production teams working across macOS and Windows. The plug-in provides momentary, short-term, long-term, loudness-range and true-peak readouts, alongside gain reduction information. Its components support mono, stereo and multichannel 5.0 and 5.1 workflows.
Standards support is a central strength. WLM Plus measures against ITU, EBU and ATSC loudness requirements and includes EBU, LM1 and DIAL measurement methods. Users can choose from five weighting options or use unweighted measurement, with custom high-pass and low-pass pre-filtering available for more controlled analysis. A true-peak limiter compliant with ITU-R BS.1770-3 and gain trim for loudness normalization extend the plug-in beyond display-only metering. Real-time and offline CSV logging also suit workflows that require records of loudness behavior during playback or file analysis.
Its DAW coverage makes it practical for teams moving between production, mixing and post-production environments. Integrations include Pro Tools, Logic Pro, Digital Performer, Ableton Live, Nuendo, Cubase, Audition, Premiere Pro, FL Studio, REAPER, Bitwig Studio and DaVinci Resolve. Waves documents support for AAX, Audio Units and VST3 formats. WLM Plus is a paid product, so it is better suited to professionals who need standards-based analysis, normalization and logging than to users seeking a basic meter for occasional level checks. Choose it when broad DAW compatibility and loudness workflows matter; choose a simpler tool when those requirements are unnecessary.
WLM Plus Loudness Meter pros and cons
- Where it wins
- Supports ITU, EBU and ATSC loudness measurement standards
- Provides real-time and offline CSV logging
- Works across mono, stereo and multichannel workflows
- Where it doesn't
- Paid product without a free plan
- Channel capacity is limited to mono, stereo and 5.0 or 5.1 workflows
- Advanced metering may be more than needed for simple level checks
WLM Plus Loudness Meter fact sheet, pricing and score →
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