Reset Of Load Monitoring Errors; Frequency Generator; Link A»B - d&b audiotechnik D12 Software Manual

Freq. Generator

Frequency Generator

Back Mode off
Level -42.0dBu
Frequency 1000Hz
Frequency Generators
are used by
Load Monitoring
Ok
D12 Stage right
Q7 Q-SUB
P
-3.0dB -3.0dB
+0.0dB
CUT HFA EQ 0.01 CSA 100
Link A B off
D12 Stage right
Q7 Q-SUB
-3.0dB -3.0dB
+0.0dB
CUT HFA EQ 0.01 CSA 100
D12 Software manual (Firmware V2.x.x)

Reset of Load Monitoring errors

To reset error indications either:
- Power Off/On at the device or remotely.
- Switch the Load Monitoring Off/On at the device or remotely.
off Frequency Generator
Each amplifier channel is equipped with an independent signal
A
generator offering pink noise or sine wave signal.
The generator can e.g. be used to check the connected loudspeakers or
to identify room resonances. 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 will be given as
shown in the graphic opposite.
Mode
Selecting "Mode" and pushing the encoder allows the following settings:
off:
Sine:
D
Pink:
EQ
Level
Level of the frequency generator in dBu, covering a 63.5 dB range from
–57.5 dB to +6 dB in 0.5 dB steps. The level value corresponds to a
level at the controller signal input. The actual output voltage depends on
the channel input gain, the frequency dependent gain of the selected
loudspeaker configuration and EQ settings if used.
Frequency
Frequency adjustable in the range of 10 Hz to 20 kHz in 1 Hz steps.
Link A»B
In "Dual channel" and "Mix Top/Sub" mode EQ and/or Delay settings
of both channels can be linked using the "Link A»B" function. The
control of these functions is then done in the Channel A menu, in the
Channel B menus the linked functions cannot be edited.
On the "Main screen" the "Link A»B" function is indicated by altering
the center line to arrows as shown in the graphic opposite.
EQ
Selecting "Link A»B" and pushing the encoder allows the setting of the
following modes:
off:
EQ:
Delay:
EQ+Delay:
(5.2EN)
generator off.
sine wave generator (indicated as " " on the main screen).
pink noise generator (indicated as " " on the main screen).
Both controller channels are operated independently.
The EQ function of controller Channel B is linked to
controller Channel A.
The Delay function of controller Channel B is linked to
controller Channel A.
Both the EQ and Delay function of controller Channel
B are linked to controller Channel A.
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