2.9.4.2 Audio options
Step 5
Go to
Config → Audio
Input source
Default is
“Stereo line”.
Don’t change it.
Format
Audio settings for the streaming. Default values are:
Format:
PCM 16 bits stereo
Sample rate:
48 KHz
PCM16 @ 48KHz generates a streaming of 1.6
Mbit/s.
2.9.5 Using a digital microwave link
An /AoIP console connected at the studio to a broad-
band Internet, can cover any distance from the stu-
dios to the transmitter plant.
For short distances, a good solution is to use a point-
to-point RF data link to carry out uncompressed au-
dio (PCM 16 bit/48 KHz). For this, install a microwave
link for 5.8 GHz (or 2.4 GHz in some countries) under
the standard 802.11.x. This band is available in all
countries and does not require special authorization.
It can cover up to 27 miles if there are no obstacles
between the extremes. Encoded audio can be trans-
ported for special applications that requires a bidirec-
tional link.
For more details, please contact us at [email protected].
2.9.6 Receive an incoming streaming
The firmware can be settled to decode an incoming
streaming; for example, a streaming generated from
other Solidyne device (series 2600/IP; DX816;
DX822; Unidex UX24 and ADA102 coder). The en-
coder unit and the console must have the same
firmware (STL).
From factory, DX816/822 is configured to work as
coder, to generate the streaming, To receive a in-
coming streaming, the mode of work must be
changed to DECODER.
To set this mode, proceed:
1. Using any WEB browser, access to the IP mod-
ule (please refers to 2.8.1.1 Access to IP mod-
ule ).
2. At the top menu, click the option
“Location”
.
3. By default, the mixer works as CODER, gener-
ating a streaming (mode “Studio Encoder”).
Change the mode to ‘Transmitter decoder’.
When the unit are configured as decoder, de-
fault values for reception are loaded. Usually
the user don’t needs to change nothing, with
the exception of PORTS and IP ADDRESS.
4. Enter to the option
“Settings → Streaming”
.
5. In the field
“Port”
enter the same port number
used in the CODER side. Hit “Apply” to con-
firm.
6. In “URL” leave the default value 0.0.0.0. Press
“Apply” to confirm.
At the decoder, pay attention to the buffer size, which
is the memory that holds the incoming streaming au-
dio to avoid drops. These interruptions occur when
the bandwidth is insufficient for the transmitted au-
dio quality and can be solved by increasing the buffer
size. But note that larger buffer size will cause
greater delay time. The appropriate value depends
on the bandwidth of the network and streaming
codec. Buffer size is expressed in milliseconds. For un-
compressed PCM streaming times of 40/80 mS works
find. For coded formats larger times are needed due
to the times involved in the decoding process.
No other value must be changed. The console auto-
matically recognize the incoming streaming. The au-
dio quality is defined in the CODER side.
2.9.6.1 Audio from incoming streaming
The console receives the streaming through the AoIP
module. The incoming streaming is decoded and sent
to a balanced input
using an external patch cord
supplied from factory
(standard Ethernet RJ45 to
RJ45).
Page 14
DX816 & DX822 - Broadcast mixing consoles
SOLIDYNE
