Solidyne MX 2400, Руководство пользователя

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A) Using a streaming server : recommended for
its operational simplicity. Requires a monthly
subscription which is very low cost.
B) Direct link from MX2400 to Studios: Least-
cost method for not requiring a monthly
subscription to a streaming server. But
requires more knowledge of computer
networks for their initial settings.
The Method 'A' is recommended for its easy
operation, the journalist connects MX2400 to the
Internet and immediately starts to transmit to studios.
This method requires contracts with a hosting
company, a
streaming server for a single channel.
Since the monthly cost is low.
In this way, the MX2400 always sends to the same IP
address and the server sends data from a fixed URL,
simplifying the reception at the studios. Another
advantage is that the transmission can be taken from
several stations simultaneously. This means that the
external transmission can be shared by several
radios. It's a good option for freelance reporters who
sell their work to several radio stations.
Method 'B' does not require a streaming server. But
programming for their connection is more complicated
and does not distribute the signal between various
radio stations (see Appendix, Section 5.1 - Direct
Connection").
This scheme is a summary of the ways that you can work when the
MX2400 starts the connection. Note that in case A, both the console and
the studios start the connection to a streaming server .
5.1.2.1 If the MX2400 transmit to a streaming
Server
At studios a computer with Internet access and any
audio player software that manage streaming. We
recommend VLC Player (
www.videolan.org/vlc ).
receives the streaming. In the player software you
must enter the broadcast URL address. This
information is provided by your Server provider.
IE: in VLC Player, open “File” and choose “Open network”; in
Windows Media Player go to “File → Open URL”. Here you enter the
broadcast address of the streaming server. The default Solidyne test
server is:
http://streamnow.alsolnet.com:8080/solidynedemo
If you can not connect, it may happen that the network
administrator has a firewall that blocks outgoing Internet
connections for the specified port (in our example is 8080)
installed. Consult this issue with your network
administrator.
5.1.2.2 If the MX2400 transmit directly to the
studios
In this case the streaming goes directly to the LAN
router at the studios of radio station. The router must
redirect the incoming streaming to a specific
computer.
In the streaming player you must enter the port of
the computer to which the streaming arrives, and the
transmission protocol used by MX2400.
Example: using VLC select “File → Open network” and
specify the port number (usually 5900) and indicate rtp://@:
[port] (or rtp://0.0.0.0:[port]) or udp://@ according to the
MX2400 settings. Default protocol is RTP (real time
protocol) which is slightly more efficient than UDP.
5.1.3 Play Buffer
Applications for streaming player generally has a
buffer that stores a certain time streaming received, to
avoid cuts in case the connection is lost temporarily.
The buffer time setting depends on the speed of the
Internet connection, and the type of transmission.
•
If your Internet connection is fast, you can use
values of 0.5 seconds or even less.
•
If transmission of an event in which the delay
is not interested, such as a festival or
conference, you can use longer times at 10
seconds.
•
For transmissions of sporting events where
you want to have the shortest delay time
should use the shortest time Internet
connection supports.
Note that when transmitted using streaming server,
the server has its own buffering time, which adds to
the player's buffer.
Determine the appropriate buffer is a work of trial and
error, because it depends on the transmission
conditions. If you require the minimum delay possible,
you can start with a value of 200 milliseconds and go
incrementing if you notice interruptions in reception.
In VLC Player software, the buffer is entered in the
same screen as the connection address:
File → Open dump network and check the "Show more options".
Cache buffer is the time in milliseconds.
SOLIDYNE CODEC–MIXER MX2400 Page 26