NTi Audio XL2 Sound Level Meter - Manual (Page 59)

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Sound Level Meter
Correction Value KSET
The correction value page offers a measurement wizard for live
event monitoring, applicable in case the measurement location
differs from the loudest position in the live event area.
Measurement Position
The goal at live event monitoring is to measure the sound level
at the loudest position accessible by the audience. Setting up
any sound level measurement at this loudest location is typi-
cally not practical, thus an alternative measurement position is
chosen. The recommended measurement position in order to
minimize the influence that audience noise has on the mea-
surement:
Mount the measurement microphone in front of the main •
speakers
Position the XL2 Analyzer at front of house (FOH)
•
Connect the XL2 Analyzer and measurement microphone •
using a professional audio cable
Positioning the measurement microphone at
front of house (FOH) may result in audience
noise interfering with the measurement results.
The audience noise will be further amplified by
the measured k-values.
Level Difference
Prior to the start of the live event, the level difference between
the loudest and the measurement position is measured. The
XL2 Analyzer calculates the level difference automatically based
on the individual sound level measurements at both locations.
This level difference is included in the sound level reading dur-
ing the live event, and the XL2 thereby displays and records the
sound pressure level of the loudest point.
XL2 positioned at FOH
Loudest
Audience
Position
Level difference
Measurement
Position
(Microphone)
audience area