d&b D12 Software - Manual (Page 18)

Calibrate
NOTICE: Ensure that all components of the system are wired and
working correctly before executing the calibration!
Selecting "Calibrate Now" enters the submenu "Calib. Load
Monitoring" and the following message will be given as a precautionary
measure:
Calib. Load Monitoring
Cancel
A
Calibrate
Calibration interrupts
your audio program!
Calib. Load Monitoring
Cancel
A
Pilot Signal LF
+ 0.0dBu
Calib. Load Monitoring
Ok
A
Finished
LF 9.1 HF 16.0
Selecting "Calibrate" starts the calibration procedure while the progress
of the procedure is displayed. It can be canceled/interrupted and
restarted at any time by pushing the encoder during the procedure.
After a successful calibration the reference values are displayed and
"Ok" appears in the bottom line of the calibration screen.
Confirm to get back to the Load Monitoring menu.
If the calibration was not successful a respective error message will be
displayed. Also refer to section 2.5.2 System Check, Load and Input
Monitoring on page 32.
Reset of Load Monitoring errors
To reset error indications either:
- Power Off/On on the device or remotely.
- Switch Load Monitoring Off/On on the device or remotely.
Frequency Generator
Freq. Generator off
Frequency Generator A
Back Mode off
Level -42.0dBu
Frequency 1000Hz
Frequency Generators
are used by
Load Monitoring
Ok
Each amplifier channel is equipped with an independent signal
generator offering pink noise or a sine wave signal.
The generator can be used to check the connected loudspeakers or to
identify room resonances, for example. The generator is inserted in the
signal path after the delay and before the loudspeaker equalization.
The test tone will sum with any input signal present.
Notes: As a precautionary measure the frequency generator will
always be off (Mode = off) after the D12 is powered on.
The frequency generator provides the Pilot Signals for the
"Load
Monitoring" function. When using "Load
Monitoring" the frequency generator function is not
available and a message is given as shown in the graphic
opposite.
Mode
D12 Stage right
Q7
-3.0dB -3.0dB
CUT HFA EQ 0.01 CSA EQ
Q-SUB
+0.0dB D
P
100
Selecting "Mode" and pushing the encoder allows the following settings:
off: generator off.
Sine: sine wave generator (indicated as " " on the main screen).
Pink: pink noise generator (indicated as " " on the main screen).
D12 Software manual (Firmware V2.x.x) (5.5 EN) Page 18 of 36