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is especially useful for talent and guests in the same
room as the board operator; their headphone feeds will
all monitor the audio selected on the
Monitor 2
selec-
tor, but the board op can communicate with each person
privately using
Talkback
key on their fader strip.
Studio Microphone Channel Operation
The third type of mic channel is a Studio Microphone.
This mic is typically located in a location separate from
the control room — perhaps a voice-over booth, a talk
studio separated by glass, or a news booth.
Logic for Studio Microphone channels is identical
to that of the Control Room Guest Microphone chan-
nel. Studio Microphone channels can be turned on and
off remotely and provide on/off status to a remote logic
device.
Remote Talk
and
Remote Mute
functions are
provided for use with a remote On/Off/Talk/Mute panel.
Remote Talk
lets talent and guests communicate
with the board op. When
Talk
is remotely activated, out-
puts to program buses for that channel are muted and the
source audio is fed to the
Talkback
bus. While active,
the
Talkback
key is lit and the Status Symbol displays
TALK
. When the user stops talking, the channel returns
to its previous state, and its
Talkback
key flashes for
three seconds, alerting the board op to the guest who
spoke to him, and enabling reply via the
Talkback
key.
When
Remote Mute
is activated, the Status Symbol
will display
MUTE
, all channel outputs are muted until
the key is released, and the channel is again active.
The
Monitor-2
speakers mute when a Studio Micro-
phone channel is turned on, or if it is assigned to the
Program-4/Record
bus.
The Studio Microphone channel can be associated
with an individual Headphone feed. All Studio Micro-
phone-associated feeds will monitor the audio selected
on the
Monitor 2
selector, but the board op can commu-
nicate privately using the
Talkback
function.
Line Channel Operation
Line-level devices like CD players, tape players, etc.,
use the Line Channel profile. The Line Channel is ste-
reo, but the user can change the input mode to mono, left
only or right only by using the
Pan & Mode
key in the
Master Module’s
Channel Options
section.
Line channels have a variety of remote logic func-
tions available at the GPIO interface.
ON
and
OFF
keys
can be remotely controlled, as well as the
Preview
key.
Each function has a corresponding lamp driver.
A
Reset
function is provided to remotely turn the
channel
OFF
while suppressing the
Stop
command, use-
ful for allowing certain types of tape machines to re-cue.
You’ll also find a
Ready
command which will remotely
illuminate the
OFF
lamp on the Element channel and ac-
tivate the GPIO
OFF
lamp driver, allowing source equip-
ment to signal the operator with either a steady-state
OFF
button (indicating source ready) or a flashing
OFF
button
(indicating source next). Refer to the GPIO Node User’s
Manual for information on interfacing to the GPIO’s in-
puts and outputs.
Phone Channel Operation
The Phone Channel profile is used, naturally, for tele-
phone hybrid audio sources. Each Phone Channel has its
own discrete Feed-to-Source mix-minus output.
Each Element can accommodate as many unique,
automatically-generated mix-minus feeds as it has fad-
ers. If the Feed-to-Source mode is set to “Auto” (the
most common option - see Chapter 3: Working with
Sources for the section entitled “Source Profile Op-
tions”), phone callers hear the output of the
Program-1
bus, minus himself, when the channels they’re assigned
to are
ON
. When the caller’s channel is
OFF
, their chan-
nel’s
Talkback
key is lit and they hear the Board Opera-
tor’s mic routed to their
Talkback
feed.
When a Phone Channel has been assigned to an
Element fader, the Status Symbol display located above
the channel name will display an icon to show the board
operator what is being fed to the caller.
Phone feed-to-source outputs can also be locked to
backfeed only
PGM-1, PGM-2, PGM-3
or
PGM-4
, us-
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