Extron electronics DMP 128 FlexPlus User Manual page 52

USB Input
Double-click the Aux input gain block and hover the mouse over
available USB audio channels. Select one of the USB channels to insert it as the source for
the selected Aux input.
The four USB channels appear as two pairs of stereo channels:
• left and right channels are for communications audio from a connected
USB 1
computer.
• left and right channels are for playback audio from a connected computer.
USB 2
The DMP 128 FlexPlus appears both as a communications and as a playback audio device
in the operating system of the host computer. Select the DMP 128 FlexPlus as the output
device for both communication audio and playback audio to route audio from the host
computer to the DMP 128 FlexPlus via the rear panel USB audio port.
Figure 73. Aux Input USB Selection
VoIP Input
Double-click the Aux input gain block and hover the mouse over
eight available VoIP lines. Select one of the VoIP lines to insert it as the source for the
selected Aux input. Aux inputs with VoIP lines selected as the source receive signal via the
far end of the VoIP network. VoIP lines can be assigned to Aux channels before the line is
registered with the call server; however, VoIP lines must be registered with a call server and
configured from the DMP 128 FlexPlus VoIP web page before these inputs can function
properly (see DMP 128 FlexPlus VoIP Web Page
a single line can be placed on multiple Aux inputs for conference calling capabilities.
NOTE: When a VoIP line is assigned as the source or removed from Aux input, the same
VoIP line is assigned to or removed from the corresponding Aux output.
Figure 74. Aux Input VoIP Line Selection
Aux Input Dialog Box
Once a source has been selected for an Aux input, double-click the Aux input gain block to
open the dialog box.
Aux Input
USB...
VoIP...
on page 169). Multiple appearances of
DMP 128 FlexPlus • DSP Configurator Software
to display the four
to display the
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