Tektronix WFM5200 User Manual page 81

WFM5200 Waveform Monitor User Manual
Peak (dBFS): The True Peak signal level measured on the channel.
High (dBFS): The highest signal level measured by the signal level meter.
The level meter response is based on the Ballistics setting. If ballistics is set
to True Peak, this readout is the same as the Peak readout.
Active Bits: The number of active bits in the channel. For SD Embedded
Audio the maximum is 20 bits.
Smpl Rate: The sample rate of the channel pair.
L (K)/(eq) (dBFS): The average loudness level for each channel. This can be
either a "long" (averaged over the entire session), or "short" (averaged over a
10-second rolling interval) average.
NOTE.
When AUDIO > Loudness Filter & Measure > Linear is selected, Leq
(dBFS) is displayed; for A-weighted loudness, LAeq (dBFS) is displayed; for
LKFS ITU-R BS.1770 loudness, L(K) (dBFS) is displayed.
L (K)/(eq) (pair): The average loudness level for each pair of channels. This
can be either a "long" (averaged over the entire session), or "short" (averaged
over a 10-second rolling interval) average.
NOTE. When AUDIO > Loudness Filter & Measure > Linear is selected, Leq
(pair) is displayed; for A-weighted loudness, LAeq (pair) is displayed; for LKFS
ITU-R BS.1770 loudness, L(K) (pair) is displayed.
Program (number) Loudness: Represents the running average loudness for
selected channels from the current audio input. This value is derived over the
entire session, so the sample period is infinite. It is also known as the "long"
loudness average.
Short: Represents the running average loudness for selected channels for the
current audio input. This value is derived from a short period duration set by
the user. It is commonly referred to as the "short" loudness average.
Short Pd: The Short Period defines the duration of the short Loudness average
and is defined by the user within the Config menu for Loudness Settings.
Chans: The Channels Summations shows the number of channels that are
currently summed together for the Loudness average.
Changed Since Last Reset: Either Yes or No. Indicates whether an error has
occurred since the last reset.
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