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APPENDIX C: Ravenna Network Setup
Introduction
Installing the iAM-VIDEO into an existing and functioning Ravenna network is
virtually plug and play. The iAM rear panel AoIP jack supports 1Gb/s and 100Mb/s
Ethernet devices in Ravenna Audio over IP network configurations.
iAM-VIDEO channel source selections are made by choosing
Input Type
‘
AoIP
’ in
the
Configuration-Configure Presets
page regardless of which AoIP option is
installed.
Note:
In addition to the iAM-VIDEO configuration, the Coveloz Bach board needs to
configured using its own configuration tool. The menus in this configuration tool are
shown in this Appendix.
Note:
The instructions provided in this appendix are intended only as an overview.
Detailed instructions may be found in the Coveloz Manual.
What is in the iAM-VIDEO for Ravenna
The AES67 enabled Coveloz Bach board supports the following features:
RAVENNA-Compatible Talker/Listener
1)
RFC 3551 – RTP Profile for Audio and Video Conferences
a)
L16 16-bit linear format defined in RFC 3551 clause 4.5.11
b)
L24 24-bit linear format defined in RFC 3190 clause 4
c)
AM824 24-bit Audio as defined in IEC61883-6
d)
Multicast and unicast session support
e)
48 kHz and 96 kHz audio sampling rates
f)
1 to 8 audio channels per stream
g)
Up to 64 streams
2)
Media clock support
a)
48 kHz and 96 kHz
3)
Hitless Stream Redundancy
4)
IGMP v3 support
5)
Session Announcement Protocol (SAP) support
AVB Ethernet Features
AVB uses the concept of streams and channels. A stream is a connection from one
talker to one or more listeners. One stream can be made up of 1-60 audio
channels. The Ravenna option supports the following AVB features:
1)
AVB 1722 AVTP with multiple subtypes:
a)
IEC 61883-6 MBLA
b)
AM824, 24-bit Audio Encapsulation