Dante Inovonics 552, Инструкция по установке и эксплуатации, Страница: 49 / 60

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Both modes are available concurrently and are set-up under the
Stream
category of
Dedicated Outputs
on the
Setup
Webpage. (The
little loudspeaker icon at the top of each 552 Webpage makes
use of HTTP/Icecast streaming.)
HTTP/Icecast
Setup
The five HTTP/Icecast streams are accessed using the IP ad-
dress (and 552 port assignment if required) followed by a slash
and which stream you wish to hear. To listen to the FM audio
program examples might be:
http://10.0.0.19/stream0 or http://50.79.39.149:552/stream0.
/stream1 would bring up the HD1 audio, /stream2 for the pro-
gram assigned to HD
A,
/stream3 for HD
B
and /stream4 for
HD
C
.
The streaming
Codec:
is fixed to
HE-AACv2
standard, at a
streaming
Bitrate (kbps):
that defaults to
64
, although it can be
manually reset all the way down to 18 kbps for really poor net-
work conditions. The streaming Sample Rate: may also be
changed, from the digital-radio broadcast plant default of
44.1kHz to 48kHz .
For the general-listening
HTTP/Icecast Stream
, a useful 552 fea-
ture is the ability to add-in a fixed
Audio Latency (Sec):
delay to
the inevitable delay inherent in transport. This provides more
data “ready to go” upon connection, in turn helping the client’s
buffer to fill and playback to start faster.
Although the 552 can accommodate as many as 10 simultane-
ous Web listeners, this number can be truncated in the interest
of better streaming service to fewer authorized listeners. Set
the Max Listeners: slider anywhere between 0 and 10 .
UDP Streaming
The 552 can send up to five, independent program audio
streams over UDP to any
IP Address:
with a designated
Port:
.
En-
able: must be set to On , of course, and a proper Transport: mode
selected; check with the receiving end to confirm which.
Save the
Settings!
Once streaming settings have been set-up, or later been modi-
fied, settings must be saved by clicking the Save bar at the bot-
tom of the Webpage. This reset of the streaming utility will
disconnect any current Web listeners, who then must then log
back on.
General Purpose
Outputs
The rear-panel
General Purpose Outputs
(GPOs) serve as ‘tallies’
for up to ten of the twenty possible 552 signal and program
fault alarms.
Each output is numbered in accordance with the numbers
above the barrier strip on the rear panel. The alarm associated
with each connection is listed as well, along with whether or
not that alarm has been set to active on the Alarms Webpage.