Extron Electronics SSP 7.1 User Guide - Manual (Page 42)

Testing & Output Trim Tab
After the Speaker Delay tab, configure the Testing & Output Trim tab.
Figure 23. Testing & Output Trim Tab
Several factors can affect the sound level reaching the listener from different speakers. These
factors include the distance from the speaker to the listener, slight variations between the
output channels of a single amplifier, and variations between the individual speakers. Use
the output trim to set the output level of each individual channel to compensate for all these
variations and ensure that the sound level reaching the listener is the same from all speakers.
This tab also provides a test signal utility.
Test signals
Test signals are used during setup to calibrate the level of each
channel and to ensure proper connection between the individual
output channels of the SSP 7.1 and the line level input channels
of an audio signal processor, a receiver with built in amplifier, or
a stand alone amplifier that powers the loudspeakers.
Selecting test signal source
There are four test signal options (see
Test Signals on page 17):
Off, Dolby Noise, Pink Noise, or Active Input. They are
selected from the mutually exclusive Source Signal Type buttons.
By default, the test signal is Off. The Dolby Noise and Pink
Noise test signals are generated by the SSP 7.1.
NOTE: The Active Input selection is normally used with an analog source on input 5.
The output must be set to Mono to All.
SSP 7.1 • Setup and Control Software 36