Aes67 Multicast Connection Setup - Telos Alliance xNode Serie Bedienungsanleitung

PTP clock sync interval determines how often clock packets are sent. The faster those packets are sent, the faster and
more accurate synchronization can be achieved. Some IEEE1588 devices do not support lower clock sync interval
than 0.5s, so this setting may need to be adjusted depending on what other networking equipment is used. AES67
recommends an interval of 1⁄8 (8 packets per second). This setting affects behavior of the master clock and does
nothing when the node is a slave.

AES67 Multicast connection setup

xNode transmits a multicast streams as soon as Source is configured with a Livewire channel number or multicast
IP address and Stream Mode is set to a value other than "disabled". AES67 requires devices to support reception of
at least 1ms frames this corresponds to "Low Latency Stereo" Stream Mode setting. Other settings will work if the
receiver supports different frame sizes in addition to the required 1ms.
Figure App-1: Example of a 2-channel, 24-bit, 1ms frame, multicast stream to group 238.194.0.1
The Session Description (SDP) can be downloaded from xNode by clicking on the 'AES67: Download stream
description (SDP)" link.
In order to receive AES67 multicasts stream the multicast address of the stream would be enter into the Channel/
Address field of the Destination page.
This method of configuration for multicast reception requires the source to transmit in PCM 24 bit stereo or 8 channel
format. To receive other forms, follow the multicast group with information about the stream as follows:
{multicast group};{bit rate}/{sample rate}/{channels}
238.194.0.2;L16/44100/2
Surround 8 channel reception is set up by selecting Destination Type: Surround.
Channel/Address field accepts optional UDP port number following IP address, separated with a ":". This is useful
option when the port number is different than RTP default 5004.
Figure App-2: Example of receiving a multicast stream
© 2017 Telos Alliance - Rev 2.0.1