Solidyne MX 2400, Руководство пользователя

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If the button is in 'STEREO' position and the
streaming is stereo, you will be making a stereo
transmission with stereo monitoring (headphones).
In this condition, the Talk-back microphone does
not mix with the streaming, allowing a private
communication with studios using a phone link while
broadcast the audio sends via Internet (stereo
straming).

If you need to use the Talkback mic to talk with
studios in a transmission, you can use the
mono/stereo button as stereo and transmit mono
streaming. But in this case, you can not use the
microphones 2 and 4; and remember audio from
microphones 1 and 3 will be heard only at the left
headphone's speaker.
2.2.6 Talk-back
Sends the talk-back microphone, located at the
front of the console, to the mono output (MONO
PGM) and telephones (RJ11 and Bluetooth). Talk-
back signal in not sent to the stereo output.
When the MX2400 is on the air using streaming,
Talkback operates as private circuit ONLY in stereo
transmissions (button MONO/STEREO of
headphone mixer released). In the MONO position
the talk-back microphone is sent to streaming, so it
can not be used while the console is on the air.
2.2.7 Program VU-meter
The console incorporates a needle VU-meter that
shows the signal level at the output of the
compressor. This level corresponds to mono and
stereo program outputs (it shows the sum L+R).
This instrument is connected to an amplifier that
measures the peak of the audio signal. An optimal
level reaches when the needle moves along the
scale, penetrating the red zone only with peaks. The
compressor attenuates the peaks freeing the
operator of a fine control.
The VU-meter is also used to show the status of the
battery. Pressing BATT TEST, the needle indicates
the battery level. The red zone indicates that the
battery is full charged (this indication only occurs if
the console is turned on).
The battery drain is not linearly. After a brief initial
drop, the charge remains stable for many hours,
then begins to decline fastly.
2.2.7.1 Audio compressor
The Solidyne MX2400 has a dynamic range
compressor, of automatic action, which process the
send to the phone line and the mono program
output, maintaining the peak at a constant level.
Stereo streaming signals and stereo output are not
compressed, to save the full dynamic range and the
nature of the sound. If using mono streaming, the
compressor is active because it is understood that
transmitting human voice.
LED indicators show the reduction gain applied to
the signal. Indications 5 and 12 expressed in
decibels, are the attenuation applied to the signal
when it exceeds 0VU. The more the signal exceeds
the 0 VU, the higher the compression used, being
18 dB the maximum compression. The ideal
condition of work is green LED always on and red
LED lighting just with the peaks.
This compressor prevents to the signal peaks
saturate the transmission lines, causing distortion.
Using this advanced compression allows a better
reconstruction of sound quality in the studios, using
Solidyne
VQR
®
.
2.2.8 Test tone
MX2400 includes a test-tone generator, which is on
by pressing the button "1KHz". It sends a sinusoidal
tone of 1000 Hz @ 0VU to all outputs (mono,
stereo, RJ11, Bluetooth, Ethernet).
Test tone sent to streaming is 6 dB attenuated in
left channel, to identify the channels in studios.
SOLIDYNE CODEC–MIXER MX2400 Page 13