Larson Davis SoundAdvisor 831C Reference Manual page 137

FIGURE 17-10 Event History with Dynamic Triggering
1.
100
90
80
70
60
50
40
30
20
10
0
0:00:00 1:56:39 3:53:19
FIGURE 17-11 Event History with Dynamic Triggering and Events
1.
100
90
80
70
60
50
40
30
20
10
0
0:00:00 1:56:39 3:53:19
Leq
SoundAdvisor Model 831C
5:49:59 7:46:39 9:48:18
Leq Background tracking level
1.
The Leq is set the same as in Figure 17-8 Event History with Level Trigger-
ing.
2.
The background level is tracked throughout the measurement.
3.
The trigger level is adjusted based on the background level and an indi-
cated offset. Here the offset is 20 dB.
5:49:59 7:46:39 9:48:18
Background tracking level
1.
With dynamic triggering, events only occur if the level exceeds the back-
ground level plus the offset. Here the offset is 20 dB.
2.
The bars represent events logged during the measurement. There are
about 11 with a Minimum Duration of 3 seconds.
Understanding Level and Dynamic Triggering
2.
11:44:58 13:41:38 15:38:18
Dynamic Trigger Level
2.
11:44:58 13:41:38 15:38:18
Dynamic Event
3.
17:34:58 19:31:38 21:28:18
17:34:58 19:31:38 21:28:18
Dynamic Trigger Level
23:24:58
23:24:58
17-10