Solidyne MX 2400, Руководство пользователя

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2) Turn on the console MX2400
3) Enable the " streaming " button on the front
panel.
4) Using a Laptop , look for WiFi networks :
5) Connect to the " MX2400 " ( network password
: streaming)
6) Open a Web browser and enter 192.168.0.90
(default IP of the computer).
7) Go to "Settings → Settings → Network"
8) Here the IP address of the MX2400 is defined.
To connect to a LAN you can:
a) Enable automatic IP assignment (DHCP),
entering the value 0 (zero) in all fields.
b) Enter a free IP fixed , the range used in the
LAN.
9) Click "Apply". From now it is not possible to
access the console via WiFi.
10) Remove the cable-bridge.
11) Connect the RJ45 "Ethernet streaming" from
the console to a router / switch on the LAN.
12) Using another terminal on the same network,
open a Web browser and enter the new IP
address (if you chose DHCP, the IP address
announces on headphones on boot).
13) Set the transmission destination IP, as
described in "Chapter 4 - Transmission of
streaming ".
3.4 Transmisión por VoIP
This case raises an outdoor mobile unit from which a
reporter dialogue in real-time with studios. MX2400 is
connected to a laptop running a VoIP software
(Skype or similar).
3.4.1 On transmission
Via USB, the MX2400 Solidyne console connects to
a laptop with Internet access. Communication with
radio studios is set from the laptop using a VoIP
software (Skype or similar), which provides good
audio quality and minimum delay even when
bandwidth is limited.
IN STUDIOS, THE OPERATOR DO NOT SEND
BACKGROUND MUSIC TO RETURN. ONLY THE
VOICES. The Skype communication is half-duplex.
Background music can cause cuts in the audio
transmission.
3.4.2 On the return of studies
The mix generated in the MX2400 is sent via USB to
the laptop, which transmits it to the radio. In turn, the
laptop sends to MX2400 the return from studios,
which adds directly to the headphone mix. The
operator of the MX2400 has on headphones return
from studies, giving level to USB/IP knob.
3.5 Monitoring on location
(when transmitting streaming)
The transmission of digital streaming is
unidirectional
(with the exception of VoIP software
running on an external computer). The console
transmits to studios via Internet. The studios goes
back to the console via a cell phone (see picture
above).
Simultaneously to the Internet link, MX2400 provides
a Bluetooth wireless communication to the studios.
From the studios the radio sends audio to the
console, using a standard phone hybrid. The
operator of the MX2400 listen the transmission by
opening the knob BLUETH of headphones mixer (or
'STUDIO' when RJ11 connector is used instead
Bluetooth).
3.5.1 Streaming latency
The MX2400 transmission is almost instantaneously
(100 mS delay). But the path that streaming follows,
including Internet and the decoding at the destiny
computer, makes the total delay amounts 0.3 to 1.5
seconds for a direct link; and 0.5 to 5 seconds if you
use a Icecast streaming server.
This delay (aka latency) must be considered by
journalists. It is irrelevant if you send a music festival,
a sports match, or do interviews from the MX2400.
However, it must be in consideration when the
journalist asking being studios, and the interviewee is
on location (MX2400). This means that the journalist
should ask through a cell phone link, and wait for the
latency for the response, that coming from the
MX2400 via Internet.
You can use the analogue transmission to establish
a dialogue with zero latency, since the MX2400 also
transmits the audio signal by cell phone. Just switch
to hybrid that the receives the phone's signal at the
studios if you want to have a communication without
delays. In turn, you can use in the studios the VQR
®
system to restore the voice quality of the interview
(please listen the audio demos at Solidyne's web
site).
The next chapter details how to manage in studios
the signals generated by the codec-mixer MX2400.
SOLIDYNE CODEC–MIXER MX2400 Page 17