Dante Audio Switching Board Troubleshooting - AMX DGX1600-ENC Hardware Reference Manual

Supported Downmix Input Formats
Dolby TrueHD

Dolby Digital Plus

Dolby Digital

DTS-HD Master Audio

DTS-HD High-Resolution Audio

DTS

2 CH through 8 CH L-PCM

Routing the Downmix Input
The downmix input is selected from the available audio inputs and is routed the same as any other audio input to any or all outputs
(for general switching and configuration instructions, including the downmix input, see page 166).
Downmix SEND_COMMANDs
The downmixed audio input uses a subset of the SEND_COMMANDs available for Dante Audio Switching Boards (see below). For
details on each of the SEND_COMMANDs that work with the downmixed audio input, see the Audio Input SEND_COMMAND section
on page 202.
AUDIN_STATUS

AUDIN_GAIN

AUDIN_STEREO

AUDIN_COMPRESSION

AUDIN_COMPRESSION_ATTACK

AUDIN_COMPRESSION_RELEASE

AUDIN_COMPRESSION_RATIO

AUDIN_COMPRESSION_THRESH

?DOWNMIX_DOLBY_DRC

DOWNMIX_DOLBY_DRC

?DOWNMIX_SOURCE

DOWNMIX_SOURCE

NOTE: To negate a downmix command, reroute the switch.

Dante Audio Switching Board Troubleshooting

If switching speed or command response slows after adding Dante ASBs to the enclosure:
Your Dante network may be attached to the Enova DGX's ICSLAN Private network. If so, the ICSLAN Port may be issuing

DHCP addresses, flooding the network.
Remove the ICSLAN from the Dante network and configure the switch on your Dante network using IGMP protocols to

correctly configure your network settings (see Dante documentation at www.audinate.com).
If you cannot find the Dante Audio Switching Board in Dante Controller:
Check that the network cable is plugged in, and that the activity lights are flashing (fairly rapidly).

Check that the correct network interfaces are selected. The selected network interfaces can be changed via the "interface

selection" button in the main Dante Controller toolbar.
Check that your network interfaces have the correct IP addresses (or set to acquire IP addresses automatically).

Check that you have no Antivirus software installed (Dante uses 'unusual' port addresses, due to the 'usual' port addresses

already being used by other common applications) - please see the Dante Controller user guide for details.
Check that you have no firewall active - please see the Dante Controller user guide for details on how to safely configure a

firewall for use in a deployed network.
If you need to determine which physical Dante device corresponds to an entry in Dante Controller:
Double click any device in the Network View to open the Device View, then click the Identify button. This causes LEDs on the

device to flash (note that not all Dante devices support this feature).
If downmixed audio is not present or is intermittent with good video:
A signal containing both video and audio must have space for both signal portions. The audio signal portion lies in the

blanked portion of the video signal. High Bit Rate Audio (HBRA) requires a larger than normal space in the blanked area of
the signal. Video formats with reduced blanking normally provide enough space for audio signals. In a signal that combines
a video format with reduced blanking and HBRA, the HBRA signal is truncated and can present as either no audio or as
problematic audio (static, clicking, absent, etc.). While Enova DGX hardware supports both HBRA and reduced blanking
video formats, these formats do not necessarily work with one another.
To resolve the issue, change either the audio format to non-HBRA or change the video format to a format that does not use

reduced blanking.
Hardware Reference Manual – Enova DGX 100 Series Digital Media Switchers
Enova DGX Dante™ Audio Switching Boards
140