Studio Technologies 76D V.2.02 - Manual (Page 34)

Issue 2, June 2009 Model 76D/77 User Guide
Page 34 Studio Technologies, Inc.
for Surround
six channels of the post-fader surround
monitor output mute.
Remember that the Model 77 Control
Console can be configured to disable
the surround/stereo button. If the button
is pressed and the post-fader stereo moni-
tor output is not selected, this must be
the case!
Display Current Sample Rate
The surround/stereo monitor output select
button is also used to display the system’s
current sample rate value. Pressing and
holding the surround/stereo button will
cause the current sample rate value to
be displayed: 32.0, 44.1, 48.0, 88.2, 96.0,
176.4, or 192.0. This can be useful during
troubleshooting or just for general interest.
Once the button is released normal display
operation will resume.
Reference Level
The reference level button sets the post-
fader surround and stereo monitor output
levels to a preset value. Technical person-
nel, using a sound-pressure-level (SPL)
meter and precision signal source, should
have set this level to meet the require-
ments of the specific monitoring envi-
ronment. The LED associated with the
reference level button will light whenever
the function is active. The 4-digit display
will indicate the reference output level.
Note that the system’s default reference
level is –60.0 dB so “out of the box” the
Model 77 will display
–60.0 when reference
level mode is enabled.
How the rotary level control functions
whenever the reference level mode is
active depends on a configuration setting.
If the auto reference level off function is
disabled turning the rotary level control will
have no impact on the reference level func-
tion; it will remain active. If the auto refer-
ence level off function has been enabled
turning the rotary level control will cause
the reference level function to automati-
cally turn off.
The LED associated with the reference
level button can also serve as a calibration
aid. If the reference level mode is not ac-
tive, whenever the post-fader surround
or stereo monitor output level is precisely
the same as that stored for the reference
value the reference level LED will flash.
This exact level can be reached through
the use of the rotary level control, either
by itself or through the setting of the
rotary level control in conjunction with the
dim function. Whatever path the post-fader
surround and stereo monitor output level
takes to reach the reference level value, it
will cause the reference level LED to flash!
Mute All
Pressing the mute all button causes the
output channels associated with the post-
fader surround and stereo monitor output
to mute. The 4-digit display indicates the
mute condition by showing four dashes
(– – – –). The mute all button is always set
to “latch” the function on and off. The LED
associated with the mute all button will
light whenever mute all is active. Note that
if mute all is enabled via the remote mute
all function, the mute all LED will flash.
Dim
The dim function is provided for user con-
venience, allowing the post-fader surround
and stereo monitor output levels to be
reduced by a fixed amount. The Model 77’s
configuration mode allows the dim level
to be selected from among four choices:
–10.0, –15.0, –20.0, or –25.0 dB. Pressing