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Controls and display
Display
The meter display has the following arrangement
-
left bar: Momentary Loudness value
-
right bar: Short-term Loudness
-
text overlay: Integrated Loudness and Loudness Range (LU) values, Gated indicator lights red when gate is active
The Loudness Range value is displayed once measurement has been running for at least 60 seconds, according to the EBU Tech 3342 specification, otherwise a ‘LRA Unstable’ warning is shown.
Pause
Clicking the 
button pauses measurement; clicking again resumes it.
This allows you to make adjustments without affecting Integrated Loudness, instead of having to start all over again.
Reset
Clicking the 
button resets the meter to its initial state.
Don’t forget to reset the Loudness meter if you’re starting playback of a new track, as Integrated Loudness, by design, measures the overall Loudness since the last reset. Otherwise you’d be measuring the overall Loudness of the combined tracks, which is probably not what you want.