Studio Technologies 76B 2012 - Manual (Page 19)

Model 76B/77B User Guide Issue 3, August 2012
Studio Technologies, Inc. Page 19
for Surround
Reference Level in dB SPL
The reference level in dB SPL configu-
ration allows a specific SPL value to be
associated with the stored reference level
value. In this way whenever the moni-
tor output is at the reference level, either
through activating the reference level func-
tion or manually adjusting the rotary level
control, the Model 77B’s display will show
the configured SPL level. Whenever the
monitor output is not at the reference value
the display will show the current value,
in dB, relative to the reference level. The
reference level in dB SPL can be config-
ured over a range of 70.0 to 100.0 dB in
1.0-dB steps. In many applications a value
of 85 would be appropriate, reflecting
the widely used audio-for-picture 85 dB
monitoring reference level. (Typically this
85 dB is really 85 dBC, indicating that a
C-weighting filter has been applied to the
measurement.) Other common reference
SPL values, such as 82 and 87, are well
within the allowable range.
Dialnorm Reference Level
The dialnorm reference level parameter is
provided so that the StudioComm system
can be configured to match a facilities’ or
“plant” default dialnorm level. This value is
used as a reference against which the sur-
round monitor output level will, if enabled,
be adjusted up or down in response to an
incoming dialnorm value. The dialnorm
reference level parameter can be adjusted
over the entire –31 to –1 dB range but
typical values will be in the range of –27 to
–24. Implementation purists might want to
select –31 dB as it may well be the “truest”
implementation of the dialnorm scheme.
In this way the system will, when enabled,
reduce the monitor output level whenever
dialnorm is different than –31 dB. But as
bar fights have broken out over decisions
such as this we’ll leave the choice up to
you! For additional information about dial-
norm refer to the Technical Notes section of
this user guide.
Dialnorm Data to Surround
Input Assignment
For correct operation the connected Dolby
E dialnorm data must be assigned to work
in conjunction with its associated surround
input. In this way the dialnorm data will only
display, and level changes will only take
place, when the appropriate surround input
is selected by an operator.
Dim Level
The dim function is used to reduce the
monitor output level by a preset amount.
The reduction is in dB relative to the moni-
tor output’s current level. There are four dim
level values available: –10.0, –15.0, –20.0,
and –25.0 dB.
Remote Mute All
Two configuration choices are associated
with the remote mute all function: disabled
and enabled. To utilize the remote mute all
function simply requires you to select the
enabled setting.
Remote Dim
Two configuration choices are associated
with the remote dim function: disabled and
enabled. To utilize the remote dim function
simply configure it for enabled.
Remote Auxiliary Monitor
Output On/Off
This function configures whether the on/off
status of the auxiliary monitor output can be
controlled using the remote control input.