TC Electronic DB4 MKII - Manual (Page 60)

UpCon HD and UpCon Plus
56 DB4 / DB8 MKII Algorithms
Output Levels
Individual output levels or all channels.
The “Fader” level allows for simultaneous attenu-
ation of all channels using a single fader.
UpCon applications
From software version 2.00 upwards, UpCon
can be used with three distinctively different in-
put routing and automatic switching configura-
tions. Make sure to choose the input configura-
tion and Automation Mode that fits your station
infrastructure and requirements the best. Note
that the basic routing is set on the Frame/Rout-
ing page.
Same inputs for stereo and 5.1
In this configuration, audio is always fed to the
5.1 inputs of UpCon, regardless if the incoming
format is Stereo, LtRt or 5.1. A Stereo or LtRt
signal uses only two of the six input channels
(green inputs on Fig 1), while a 5.1 signal makes
use of all six. When the input falls back to Stereo
or LtRt, UpCon cross-fades into up-conversion
mode. If the input becomes 5.1,
Using this mode, UpCon only looks at the Main
inputs (1 to 6), while Aux inputs are always kept
separate (e.g. for Dolby E). This is equivalent to
the “Main Only” mode in previous versions of
UpCon, but now with an important Aux Thru ad-
dition suitable for e.g. handling of codecs, see
below.
To select this mode of operation, adjust the Auto
Processing parameter to “Main Only” and route
incoming stereo as well as 5.1 signal to inputs 1
to 6. Data reduced audio may be kept separately
on I/O 7 to 8.
Two alternating inputs
with 5.1 input priority
This configuration requires audio to be fed to dif-
ferent inputs depending on its format. 5.1 is fed
to the Main Inputs (channels 1 to 6), while Stereo
or LtRt is fed to the Aux Inputs (channels 7 to 8).
Aux inputs are only enabled when a 5.1 signal is
not present. In this situation the Aux inputs are
automatically upconverted to 5.1.
If both inputs become active, priority is given to
the 5.1 input, while the Aux input is muted. The
stereo input may be used as fallback/local in-
sert/redundancy input. All changes are applied
doing smooth crossfades.
To select this mode of operation, adjust the Auto
Processing parameter to “Main 5.1 Priority” and
route incoming 5.1 to inputs 1 to 6, incoming ste-
reo or LtRt to inputs 7 to 8.
Two Alternating Inputs with
Stereo Input Priority
This configuration requires audio to be fed to dif-
ferent inputs depending on its format. 5.1 is fed
to the Main Inputs (channels 1 to 6), while Stereo
or LtRt is fed to the Aux Inputs (channels 7 to
8). UpCon only enables 5.1 inputs when the Aux
stereo/LtRt signal is not present. When an Aux
input is available, UpCon simultaneously cross-
fades into upconversion.
If both inputs become active, priority is given to
the Stereo input, while the 5.1 input is muted.
To select this mode of operation, adjust the Auto
Processing parameter to “Aux Priority” and route
incoming 5.1 to inputs 1 to 6, incoming stereo or
LtRt to inputs 7 to 8. You may also feed stereo to
both groups of inputs. In case both stereo inputs
become active at the same time, priority is given
to inputs 7 to 8.
Note: Aux Priority mode may also be used to
crossfade between two stereo signals, and for
UpCon+ functionality.
UpCon and MPEG, AAC,
AC3, Dolby E
With software 2.00 upwards, a bit transparent
pass-through from input 7 to 8 to output 7 to 8
has been established. Whatever Auto Process-
ing mode you have selected, inputs 7 to 8 are
available on outputs 7 to 8. This functionality was
requested by broadcasters using linear audio
on some channels and data-reduced signals on
others (e.g. MPEG, AAC, AC3, Dolby E etc.). The
most suitable automation mode when handling
both linear audio and a codec is normally “Main
Only”, see above.