Dolby Laboratories DP570 - Manual (Page 82)

70 Dolby ® DP570 Multichannel Audio Tool User’s Manual
Configuring a Monitor System Assigning a Dim Setting
Figure A-9 Real-time Analyzer (RTA) Display
If an RTA is not available, setting the LFE channel higher (e.g., 89 dBc for the Subwoofer
channel when the Center channel measures 85 dBc), can give an approximate level with an
SPL meter. This level varies with the quality of the meter being used.
For future reference, if calibrating the subwoofer with an RTA, measure the level with an
SPL meter and note the meter reading for the proper calibration. Use this measured value
for quick checks of the system calibration in the future.
A.3.10Calibrating Emulator Output
If your DP570 does not include the Cat. No. 548 Analog Option Card, calibrate your
speaker system using the emulator outputs and external equipment. These outputs are
digital and do not have any internal adjustments.
A.4 Assigning a Dim Setting
The Dim Gain slider sets an alternate level for all speaker outputs. This level is activated
when you click the Dim button shown in Figure A‐10. This setting enables you to change
your monitor level in one click (for instance, if a client walks in or you have to take a phone
call), then return to your master level setting by clicking Dim again.If the Dim Gain setting
is Off, clicking Dim mutes the speakers.
Figure A-10 Dim Button
Note: You can also activate the Dim level via the GPI/O interface but not via the
front‐panel buttons.
+10 dB
LFE Channel
Center channel 0 dB datum
+10 dB datum