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The WLM Loudness MeterNative from Waves is a plug-in that provides precision loudness measurement and metering for broadcast, movie trailers, games, packaged media and more.
Fully SoundGrid compatible and compliant with all current ITU, EBU and ATSC specifications, the WLM offers comprehensive Momentary, Short Term, Long Term, and True Peak readouts. It also features a unique warning and logging system that keeps track of your levels, and lets you know when you've exceeded them, or fallen short. WLM is an affordable, all-in-one, cross-platform, multi-format loudness metering software solution.
ITU, EBU and ATSC compliant
Foreground, dialog, and average loudness measurements
Momentary, Short Term, Long Term, and True Peak readouts
Intelligent dialog sensor detects and measures speech
Mono, stereo, and 5.1 components
Short Term: displays (in LUFS) perceived short term loudness
Long Term: displays (in LUFS) average perceived program loudness
Range: displays (in LU) the overall loudness range across the program signal
Momentary: displays (in LUFS) momentary loudness levels, according to the Momentary scale control settings
True Peak: displays (in dBTP) inter-sample peaks which do not register in the sample data but may occur during reproduction of the digital signal
Unders: displays the number of times the signal goes below the specified Short Term Min value indicated in the settings panel
Overs: displays the number of times the signal exceeds the specified Short Term Max value indicated in the settings panel
Measurements Play/Pause: determines if program loudness is registered in the WLM memory for averaging long term loudness range
Follow Transport: determines if measurement starts and stops according to host application transport controls
Timer: indicates the amount of time measurements have been taken and integrated
Reset: resets the Long Term, Range, Overs and Unders counters and returns the integration timer to 00:00:00
Method: determines the measurement method
Weighting: determines the type of weighting filter
Channel: determines the channels being measured
Short Term Max: determines the maximum short term level
Short Term Min: determines the minimum short term level
True Peak Max: determines the maximum true peak level
Target: sets the target level reference
Custom Pre Filtering: provides low pass (LPF) and high pass (HPF) filters that pre-filter the audio prior to loudness measurement
Momentary Scale: determines the scale displayed in the momentary bar meter
Logging: displays CSV logging file options
EBU: uses foreground audio as the loudness anchor
LM1: measures and averages loudness across the whole program
DIAL: uses dialog as the loudness anchor, measuring and averaging loudness only when dialog is detected