Headphone output level controls – Studio Technologies M233-01151 User Manual
Page 31
Model 233 User Guide
Issue 5, November 2014
Studio Technologies, Inc.
Page 31
is active. If the talkback 2 function mode
has been configured for disabled, it will
light only if the auxiliary relay has been
assigned to follow the talkback 2 button. If
the Model 233 is selected to the on-air or
stadium announce system mode, whenev-
er talkback 2 is active the main output will
be placed in the muted state. If the Model
233 is set to the production system mode
the status of talkback 2 will not impact the
main output.
Talkback Output 2 Button Modes
• Push to talk: If this mode is selected the
function(s) associated with the talkback
2 button is normally off. The function(s)
will become active whenever the button
is pressed and held.
• Hybrid: This mode is a combination
of push to talk and alternate action.
If the button is pressed and held, the
function(s) associated with the talkback
2 button will become active until the
button is released. If the button is mo-
mentarily “tapped” the function(s) will
change state. Upon Model 233 power
up talkback 2 will be in its off state.
Headphone Output Level
Controls
Three rotary controls (“pots”) are located
on the Model 233’s front panel and are
associated with the stereo headphone
output. The manner in which the controls
function depend on the selected configura-
tion. The control on the far right is associat-
ed with the sidetone function. Its operation
will be discussed in a later section. One
configuration parameter sets the controls
on the far left and center to operate in a
level/level or a level/balance mode. An-
other parameter allows the left/right assign-
ment of the controls to be reversed. A third
parameter selects whether the headphone
output channels will maintain a minimum
output level or can be fully muted. In most
cases the headphone output will be con-
figured for stereo, rather than monaural,
operation. The following paragraphs will
describe how these controls will function
in that scenario.
Level/Level Mode
When set to the level/level mode, the
control on the far left and the control in
the center operate independently. Each
control sets the output level of one chan-
nel of the headphone output. If configured
to the normal mode, the control on the far
left is used to adjust the level of the head-
phone output’s left channel. The control in
the center is used to adjust the level of the
right channel. If configured to the reverse
left/right mode, the control on the far left
adjusts the headphone output’s right
channel. The control in the center adjusts
the left channel.
When in the level/level mode, and the
minimum output level is set for –40 dB,
turning each control to its fully counter-
clockwise position will place its respective
output level 40 dB below its maximum.
This setting ensures that talent will never
be fully “isolated” from potentially impor-
tant cue signals. If present on one of the
Model 233’s inputs and assigned to the
headphone channels, some audio signal
will always be present on the headphone
output. If set to the full mute mode, turning
each control to its fully counterclockwise
position will cause its respective output to
fully mute.
The Model 233’s level controls have a
mechanical step (detent) that is located
at the halfway (50%) position of their
rotation range. This is intended to serve
as an aid to Model 233 users. In an ideal
installation, setting the far left and center