Studio Technologies 780-03 V.4.15 User Manual
Page 8

Issue 1, April 2015
Model 780-03/790 User Guide
Page 8
Studio Technologies, Inc.
for Surround
An LFE low-pass filter function is provided
as a means of checking the audio content
in the LFE channel of a selected surround
input. The user can enable and disable the
function as required, helping to ensure that
the proper signals are being mixed to the
LFE channel. Having the correct audio con-
tent in the LFE channel can be critical as
the LFE channel is typically band-restricted
during distribution.
The post-fader digital and analog monitor
output levels can be controlled by way of a
large, easy-to-use rotary control. The con-
trol, actually a digital encoder, allows level
selection in precise 0.5-dB steps. The auto
mute all function causes the post-fader
digital and analog monitor output channels
to automatically mute whenever the output
level control reaches maximum attenua-
tion. Using the reference level function,
the post-fader digital and analog monitor
output levels can be set to a pre-configured
value. This is provided for audio-with-pic-
ture applications that require a specific
monitor output level. The reference level is
easily configured by taking an electronic
“snapshot” of the desired monitor output
level. For user confirmation, the 4-digit LED
display will show the level of the post-fader
digital and analog monitor output channels.
To match the needs of a facility, the display
can be configured to show either the at-
tenuation level or the sound pressure level
(SPL).
The dim function allows the post-fader
digital and analog monitor output levels
to be reduced by a fixed dB amount. The
dim level is configured from among four
available values. A mute all function allows
the post-fader digital and analog moni-
tor output channels to be simultaneously
muted. The input mute/solo section allows
an input channel to be muted or monitored
as desired. Multiple channels can also
be simultaneously selected for muting or
“soloing.”
Two output mute functions are also pro-
vided. One button allows the seven main
channels of the post-fader digital and ana-
log monitor outputs to be muted. A second
button allows the subwoofer (SUB) chan-
nels of the post-fader digital and analog
monitor outputs to be muted. The output
mute functions, along with the input mute/
solo function, allow a user complete flexibil-
ity when checking an input source and its
path to the loudspeaker system(s). These
mute and solo resources are crucial in a
multichannel environment, especially when
signals are passing through the bass man-
agement function.
Three downmix functions allow the selected
input source to be checked for compatibility
with common audio channel formats. This
can help ensure that surround and stereo
mixes correctly “fold down” into formats
that utilize less channels than the original.
Errors can be quickly identified and then
corrected. The downmix functions, To 5.1
and To Stereo, apply only to the two sur-
round (7.1) sources. The To Mono downmix
function applies to the surround and stereo
inputs. Several of the downmix parameters
can be configured to best meet the needs
of an application. The downmix functions
always impact the post-fader digital and
analog monitor outputs. A configuration
setting allows the pre-fader digital monitor
output to be selected for pre- or post-down-
mix operation.
For flexibility, the StudioComm for Surround
system is designed to easily integrate with
equipment such as production intercom
systems, on-air or recording tally signals,
and audio consoles. Two remote-control