— 40 —
Other
Streaming
Options
The 541 offers HTTP/Icecast Streams for general ‘tune-in’ lis-
tening, and as independent UDP streams that allow the 541 to
send raw compressed audio to a specific IP address and port.
Both modes are available concurrently and are set-up under the
Stream
category on the
Setup
Webpage. (The little loudspeaker
icon at the top of each 541 Webpage makes use of HTTP/Ice-
cast streaming.)
HTTP/Icecast
Setup
The streaming
Codec:
is fixed to
HE-AACv2
standards. Like the
line outputs, the program
Source:
may be switched here be-
tween
FM
and
SCA
. The streaming
Sample Rate:
default is
48kHz
,
but may be changed to
44.1kHz
. The streaming
Bitrate (kbps):
de-
faults to
64
but may be manually reset all the way down to
18
kbps for a really poor network connection.
For the general-listening
HTTP/Icecast Stream
,
a useful 541 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 541 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 541 can stream over UDP to any
IP Address:
with a desig-
nated
Port:
.
Enable:
must be set
On
and a proper
Transport:
mode
selected. Check with the receiving end to confirm which.
Save the
Settings!
Once streaming parameters have been set-up or modified, set-
tings must be saved by clicking the
Save
bar at the bottom of
the section. This action will reset the streaming utility and dis-
connect any current Web listeners, who then must then log
back on.
GPO Setup
(Alarm ‘Tallies’)
The rear-panel
General Purpose Outputs
(GPOs) serve as ‘tallies’
for up to six of the 541’s fault alarms.
Click the to open an
alarm options win-
dow. Although the
Type:
of alarm has
been factory-set to the
more critical faults,
the pull-down menu
seen here allows you
to reassign any of the
possible alarms to any
GPO terminal. Each
output is numbered
to match the legend
above the rear panel
terminal strip.
Summary of Contents for Inovonics 541
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