Extron electronics SSP 7.1 User Manual page 39

4. Click the Apply button to save the changes. The new values (previously in orange) are
shown in blue as the current values and there are no values displayed in orange.
To retain the original values, click
Calculated Delay
Left Front Center
0.0 ms 1.7 ms
Left Surround
4.4 ms
Left Back Subwoofer
1.8 ms 3.6 ms
Figure 36.
Calculated Delay — Values Applied
NOTE: Users who wish to calculate the delay time for themselves should follow the full
procedure shown in
page 82.
Setup with a Real Time Analyzer (RTA) calibration tool
1. Choose an ideal central location on which all speaker output signals converge.
2. Place the microphone from the RTA at ear level in the convergence location.
3. Play the audio source. This can be an analog source, provided by the RTA.
4. Use the Test Signal Output buttons in the
select which speakers are tested and the order in which the speakers are tested.
5. Use the RTA to measure the speaker distance (in ms) for each channel.
6. In the SSP 7.1 Setup and Control Software
button and enter the values for each speaker (in ms) into the boxes. The up and down ({)
arrows increase the distance in increments of 0.1 ms.
Repeat steps 4 to 6 until the speaker distance has been entered for all available speakers.
7.
NOTE: The maximum allowable distance for the furthest speaker is 100 ms.
8. Click Apply . New values (that were shown in orange, see
are shown as the current values, in blue. No values are displayed in orange (see figure 36).
To retain the original values, click
Lip Sync Offset
Lip sync offset compensates for a lack of coordination between
the audio and the accompanying video signal. This frequently
occurs if the video signal has undergone complex manipulation
that can delay it several milliseconds relative to the audio signal.
Since some sources may require more manipulation than
others, the lip sync offset is set for each source individually to
synchronize the audio for that source with the corresponding
video signal.
Enter the appropriate value for each input in the corresponding
lip sync offset box. This delay is added to every available
speaker to resynchronize the video and audio signals.
instead of
Cancel Apply
Right Front
0.0 ms
Right Surround
4.4 ms
Right Back
1.8 ms
Setting Speaker Delay Settings Using SIS Commands
Testing & Output Trim Tab
Speaker Delay
Cancel instead of Apply
SSP 7.1 • Setup and Control Software
.
on
(see page 32) to
tab, select the milliseconds (ms)
figure 35
on the previous page)
.
Figure 37. Lip Sync Offset
31