DigiDesign D-Control Manual page 113

Control Room Output Controls
Mini Output
Level control
Mini
Mini Output
On/Off switch
On
Main Output
Level control
Main
Main Output
On/Off switch
On
Control Room Output controls
Output On/Off Switches
The Control Room monitor system has three outputs:
• Main Control Room Outputs (8 channels)
• Alt Control Room Outputs (8 channels)
• Mini Control Room Outputs (2 channels)
Only one output can be active at a time. The Output On/Off
switches follow exclusive-or (non-latching) behavior. When
you activate an output, its name and gain value (in dB) are
shown in the monitor section display.
Output Level Controls
Each of the three Control Room Outputs has a touch-sensitive
rotary encoder for control of output level. When any of these
encoder knobs is touched, the monitor section display shows
the output name and its current level in dB. Gain ranges from
a minimum level of –INF to a maximum level of +10 dB, in
1 dB steps.
Output Level Trim Mode
Each output level control can be trimmed independently, to
allow for setting of different reference levels or to compensate
for differences in gain structure. Available trim values range
from –20 dB to +10 dB, in 0.5 dB steps.
To trim output levels:
Press and hold the On/Off switch for the output you want to
1
trim, until the switch flashes.
Turn the corresponding encoder knob to set the trim value.
2
The monitor display shows "Trim" and the trim value in dB.
Press the flashing On/Off switch to exit Trim mode.
3
Dim
Level control
Dim Level
Alt Output
Level control
Alt
Alt Output
On/Off switch
On
Dim Level Control
The Dim Level control lets you adjust the amount of level re-
duction applied by the Dim switch, located at the bottom of
the Monitor section. Level reduction ranges from –30 dB to
0 dB, in 1 dB steps.
When the Dim encoder knob is touched, the monitor section
display shows "Dim" and the gain reduction in dB.
Monitor Output Mode Controls
Setup switch
Calibration Mode
switch
Cal
Dim switch
Dim
Monitor Output Mode controls
Setup Switch
This function is currently not implemented for D-Control.
Calibration Mode Switch
The Calibration Mode switch invokes a mode that changes
the output value displayed by the Monitor section display
from gain (expressed in dB) to sound pressure level (expressed in
dB SPL) for each of the control room outputs. This switch
lights when an SPL value is shown for the active output.
To display output levels in dB SPL, you must first calibrate
each output. This SPL calibration requires the use of a pink
noise source (or other reference material) and a sound pres-
sure level meter to measure the output of individual control
room speakers.
To calibrate Control Room outputs to display SPL:
Send the reference material to the Main Control Room Out-
1
puts, and set the output level in Pro Tools to your studio ref-
erence level (for example, –18 dBFS).
Pan the signal to center (so that equal level is sent to all
2
Main Control Room Output speakers).
Set the speaker-to-speaker balance for all speakers in the sys-
3
tem using Output Trim mode for each channel, using the
sound pressure level meter to measure SPL at the mix position.
See "Individual Output Trim Mode" on page 107.
Solo the Center speaker, and adjust the Main Control Room
4
Output level encoder until the sound pressure level meter
measures the target reference level (for example, 85 dB) at the
mix position. You can Output Level Trim mode for fine adjust-
ment of the output level. See "Output Level Trim Mode" on
page 105.
Chapter 10: Monitor and Meter Sections 105
Setup
Mono switch
Mono
Mute switch
Mute