Attero Tech DialogBox - Manual (Page 9)

DialogBox 4/2
User Manual
 Attero Tech LLC 2013 Page 4 614-00011-04
3 – Software Configuration
The software configuration and monitoring of a DialogBox is done using Attero Tech Control Center software. This can
be obtained from the Attero Tech website (
www.atterotech.com ). Information on installation and application usage can
be found in the Control Center Manual, also available from the Attero tech website.
3.1 – Configuring CobraNet Inputs and Outputs
The DialogBox can take in four audio channels and can send out eight audio channels through its CobraNet interface.
Getting audio to and from CobraNet requires setting up of bundle transmitters and receivers. To get audio into the
DialogBox from CobraNet, one or more receive bundles will need to be configured on the DialogBox. For audio leaving
the DialogBox onto CobraNet, one or more transmit bundles will need to be configured on the DialogBox.
By default, the DialogBox does not have any transmit or receive bundles configured. These can be configured using the
Bundle Setup screen in Attero Tech Control Center software which can set up the DialogBox to transmit and/or receive
multicast and unicast bundles as desired. Select the DialogBox from the device list in Control Center and click on the
Bundle Setup button. All the necessary parameters for setting bundles are available on this one screen.
*Note:
Details of what needs to be entered are not included here. The actual bundle set-up will depend entirely on the
application the DialogBox is used in.
3.2 – DSP Overview
All signal processing after the analog preamplifier circuitry is implemented in the digital domain using powerful 32-bit
DSP hardware and high quality algorithms. All signal processing parameters mentioned are configurable using the
Attero Tech Control Center software. The following sections describe the operation and controls available in DialogBox
4/2 interface V2.0.1 which is designed to be used with a DialogBox running CobraNet version 2.3. The DialogBox
interface version can be found in the version list on the “About” form in Control Center and the CobraNet version can be
found on the version panel on the “Logic Inputs” tab of the DialogBox plug-in.
*Note:
Different versions of the interface and CobraNet firmware may contain different controls and have different
operation.
Figure 7 – DialogBox DSP Architecture
The DialogBox 4/2 utilizes available DSP resources within its CobraNet device to provide audio signal processing (see
Figure 7). Each input has its own separate path and its own separate controls. The local inputs are fed through a mute
stage (controlled by logic input) and then a gain stage. The CobraNet inputs also have a gain stage but no user
controlled mute facility. An optional high pass filter is applied to each input next before the signals are fed through the
auto mixer. Each input may bypass the auto mixer if needed. The signals then pass through a low and a high shelf
filter before being applied to the inputs of a matrix mixer.
Each output of the matrix mixer forms the default audio for the four output zones. Each zone has its own separate
path and its own separate controls. The zone outputs are fed through two parametric EQ filters, a limiter and a gain
stage. They then pass through the ducker section which includes a pre-ducker volume section which can be optionally
controlled by logic inputs if required. The output of the ducker is then fed to the source select override which again