Larson Davis SoundExpert LxT, Руководство пользователя

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4-4
Measurement Settings Tabs LxT Manual
SLM Tab
Figure 4-2 shows the SLM tab.
FIGURE 4-3 SLM Tab
To modify settings on the SLM tab, navigate to either
Frequency Weighting , Detector , Peak Weighting , or
Integration Method page and press
5
.
Frequency Weighting
A, C and Z frequency weightings are provided for the RMS
and peak detectors. These are selected separately.
Integration Method
Two Integration methods are available: Linear and
Exponential .
Exponential Integration
Exponential integration would typically be selected to
provide compatibility with older analog instruments in
which measurements are exponential time weighted signals.
Exponential detectors tend to hide small events in the long
decay of loud impulsive events.
Linear Integration
Linear integration utilizes sampled sound pressure levels to
compute RMS levels directly, without an intermediate time
weighting.