User guide

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CHAPTER 7
Using SIM 3
3. Make sure that an audio signal is available and coming through the system — either
program material or noise. This is the source of the live trace that is being compared with
the reference.
4. Using the Trace Offset buttons, move the Room/Speaker live trace up/down until it
matches the reference trace.
5. Set the level by adjusting the system level until the Processor trace has moved to the
center of the Processor screen and the result trace matches the reference.
6. Acquire the system level value by selecting Data > Store DataGroup. Store the data
group and record the system level in the Notes field.
7.13.7.2. Set System Level — Speaker-Room (Post Processor)
1. Select the Frequency Response measurement. Select the Group view. Go to the bottom
center of the SIM 3 screen and click on the Values tab.
2. As a reference level, the user can select among existing traces that are currently in
view, or can recall a reference trace from memory. To recall one from memory, select
Recall DataGroup from the Data menu. Click on the name of the data group to be the
reference. Select the Memory row (A through D) in which to place it. Press the Recall
button.
3. Make sure that an audio signal is available and coming through the system — either
program material or noise. This is the source of the live trace that is being compared with
the reference.
4. Adjust the system level to move the live Result trace up/down until it matches the
reference trace.
5. Acquire the system level value by selecting Data > Store DataGroup. Store the data
group and record the system level in the Notes field.
7.13.8. Set System EQ
The Set System EQ procedure allows the user to set equalization with the live trace (an active
program or noise source running), or to use a stored trace to work on the system EQ settings
with the loudspeakers off. This is the step-by-step procedure as presented in SIM 3.