AEQ Audio Over IP
Routing System
13
If the secondary network is connected to a device that supports redundancy, it is enabled
automatically. Audio data is transmitted on both the primary and secondary networks
simultaneously. In the event of a failure on one network, audio will continue to flow via the other
network.
NOTE 1: Dante redundancy requires that both the primary and secondary interfaces on any
redundant device are connected using the same link speed. For example, if the primary
interface is connected to a 1 Gbps switch port, the secondary interface must also be connected
to a 1 Gbps switch port. Similarly, if the primary interface is connected to a 100 Mbps switch
port, the secondary interface must also be connected to a 100 Mbps switch port.
NOTE 2: Dante devices that do not support redundancy must be connected to the primary
network only.
Audio Formats.
Some Dante devices support a range of audio formats (sample rates). AEQ equipment operates
at FS=48 kHz, 24 bits PCM.
It is only possible to set up a subscription between channels which have a common audio
format. If AEQ pieces of equipment are connected to systems from other manufacturers, make
sure that they are setup to operate at 48 kHz 24 bits PCM. Channels on devices with
incompatible formats will be shown in grey, and will not be routable.
Flows.
Dante audio routing creates 'flows'. Each flow carries one or more channels of audio from a
transmitting device to one or more receiving devices. There are two types of flow: unicast and
multicast.
Unicast routing creates flows to a single receiving device; a unicast flow typically assigns space
for 4 channels of audio. Unicast flows are set up when a receiver subscribes to an available
audio channel, and are automatically removed when the receiver unsubscribes from all
channels in that flow.
Multicast routing creates flows that can be received by multiple receivers. Multicast flows are
assigned IDs, enabling them to be identified in "Dante Controller", and to facilitate their removal.
In contrast to unicast flows, multicast flows must be set up on the transmitting Dante device
before receivers can subscribe to these flows.
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