Larson Davis 831C-FFT, Reference Manual, Page: 159 / 254

SoundAdvisor Model 831C Making an Automated Event Sound Recording 154
FIGURE 19-2
Mark Sound Type Sound Recording
1.
Select a marker with sound recording
enabled.
2.
This initiates the Pre-trigger period
followed by the sound recording.
Step 3.
Select the checkbox in-line with a marker to start the recording. When finished,
a labeled sound record displays in the data file.
TAKE NOTE
You can also press the left softkey (
*//
) to initiate a sound recording. To
stop recording using this method, select
Stop
,
Close
, or stop the
measurement. Please note: If you don’t manually stop the sound recording, it
stops when the memory is full. Very large data files are time consuming to
download and playback.
19.3 Making an Automated Event Sound Recording
Before you begin:
• Create a setup file with Event History enabled as shown in 17.1 "Setting Up the
Event History Measurement" on page 126 .
Step 1.
On your meter, go to
Tools
3

Setup Manager
. Highlight your setup file , then
press the
left softkey
(
*//
) to open the
Sound
tab.
Step 2.
Select the checkbox in-line with Save Event Sound , and enter any other
applicable values.
FIGURE 19-3
Sound Event Settings
1.
For more information, see 19.5.1 "Understanding Resolu-
tion, Peak Overload, and Range" on page 157 .
2.
Snapshot Time is the time set to record after the event.
3.
Pre-trigger Time
is the period prior to the event-based
trigger that you want to include in the recording.
TAKE NOTE
If Event History is not enabled, but Event Sound
is, the 831C still makes a sound recording for an event. In this
case, the Minimum Duration is ignored and the recording
begins immediately.
Step 3.
Save the Setup, set it as the Active setup file, and Close (
/*/
) the Setup
Manager.
1.
2.
1.
2.
3.