SV 104A USER'S MANUAL_______________________________________________________
25
Note: The three overall TOTAL LEQ results are measured with the weighting filters (A, C, Z)
without taking into account the settings of the level meters for profiles. The spectra are always linearly
averaged. Thus, the TOTAL values from 1/1 octave band analysis can be different from those obtained for the
profiles (if the LEQ Integration was set as Exponential).
The results of 1/1 Octave analysis (so-called spectrum) can be examined by the user on a display
in Spectrum VIEW presentation mode. 1/1 Octave spectra for all 9 centre frequencies of pass-band filters
together with the 3 TOTAL overall values measured with the user selected frequency weighting filters
are presented in the Spectrum mode if enabled in configuration setup. Spectrum cursor can be moved left and
right with
<SCROLL>
,
<PROFILE>
keys respectively.
With the use of Supervisor software, the user can select which spectrum (
LEQ
,
MAX
or both) will be
available for view (see chapter 6.5.5).
Figure 3-13
1/1 Octave analysis spectrum graph LEQ view mode screens
Figure 3-14
1/1 Octave analysis spectrum graph MAX view mode screens
current
centre
frequency
current
Total LEQ
weighting filter
value of the
spectrum
at cursor
position
weighting
filter
cursor
current
centre
frequency
current
Total Lmax
weighting filter
value of the
spectrum
at cursor
position
weighting
filter
cursor
