Tektronix WFM5200 User Manual page 84

Display Information
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Short Loud: The displayed value is the short duration loudness measurement
based on the short duration period.
Infinite: The displayed value is the loudness measurement average based
on the duration of the audio session.
True Peak: The displayed value is the maximum true peak value recorded by
the audio meters. More detailed information on the true peak level of each
channel is displayed within the audio session.
Dailnorm: The displayed value is the metadata value that is present either
within the Dolby data stream or carried as a Ancillary data packet per
SMPTE2020.
Loud Range: The displayed value is the quantified (in LU) variation of the
loudness measurement of a program and is based on the statistical distribution
of loudness.
Audio Loudness Session pop-up menu.
Mute Alarms: Temporarily mutes alarm reporting.
Graph Scale: Allows you to change the horizontal scale of the chart from 0
to 60 seconds to a total duration of up to 30 hours.
Graph Gain: Allows you to change the vertical gain of the chart between
0-60 dB, 8-40 dB, and 12-36 dB.
Save History to USB: Saves the audio loudness session history to a USB
memory device.
History Reset: Resets the audio loudness session history.
All Sessions Reset: Globally resets any and all audio and video sessions
displayed in all panes, regardless of the display and session from which it
is executed.
WFM5200 Waveform Monitor User Manual