Larson Davis System 824, Reference Manual

Page: 348 / 536

10-34 824 Reference Manual 11/8/00
RT60 Check Menu
Pressing the
c
check key when viewing the RT60 display
puts you in the RT60 check menu. The check menu is shown
below:
The check menu offers the following options:
•
RT60 dB Down - dB down setting for RT-60 calculation
•
Auto RT60 - Setting to enable an auto-select of RT60
whenever a new filter is selected
•
Auto-Select - Auto-Select cursor position
•
Graph-V - See page 2-13 for explanation
•
Graph-H - See page 2-13 for explanation
•
View Back - Returns you to the previous display
Spatial Avg Views
The Spatial Averaging facilities allow user selected spectra
to be averaged on an equal weighting basis. It is often used
to average the spectra that were measured at various loca-
tions around a noise source or across the length of a wall or
partition. The resulting average is displayed and can be
stored into a history for later viewing.
The Spatial Avg Display Views are accessed through the
V
View key. To select the the Spatial Avg Display Views press
the
V
View key and highlight “Spatial Avg”. The following
menu will appear: