55 000 015 – Ed. E
Mix2000 - User Manual
3
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February 2001
Manuel Mix2000 (E) - Ed. E.doc
Various listening modes are available on the headphone output:
•
Normal stereo or reverse stereo;
•
Right signal only or left signal only on both ears;
•
Mono (left/right summing) mode, for checking mono compatibility, phase coherence, etc.
Last, M/S
↔
L/R matrixing can be used for monitoring. This is used for listening to a normal stereo signal
in the headphone while using M/S microphones
1
. As an alternate use, when the mixer is operated in
normal L/R stereo mode, M/S encoding of the monitored signal can be used for checking the stereo
correlation (checking the “S” signal level in relation with the “M” signal level).
Whenever used, matrixing is applied as follows:
“Left” matrix output
= SIG L + SIG R
(SIG L/R are the monitored signals before matrixing)
“Right” matrix output = SIG L - SIG R
2.6. Internal oscillator
An internal stereo oscillator is available for sound checking and alignment. The oscillator frequency is
1000 Hz on the left and 400 Hz (intermittent) on the right. By internal configuration, it is possible to have
1 kHz both on left and right channels. It is also possible to make the right signal permanent.
2.7. Slate
A talkback microphone, integrated in the mixer, can be used for inserting the operator’s voice on a mixer
output. Depending on the internal configuration of the mixer, the slate signal is inserted on one (or more)
of the following outputs:
•
Left MAIN output;
•
Left SUB output;
•
Output to RF transmitter;
•
Left MON output.
2.8. Monitor (MON)
The mixer features a MONITOR interface, typically used for intercommunication with a camcorder or a
control room (outside broadcasting applications, ENG). This interface includes the following signals:
•
Stereo “MON OUT” output (MAIN signal);
•
Stereo “MON Return” signal (input to the mixer for monitoring);
•
Slate signal (output);
•
“On-air” control input.
1 If the MAIN signal has been applied M/S
↔
L/R matrixing at the output, the MAIN signal is automatically monitored with M/S
decoding, because the signal is picked up after the M/S
↔
L/R matrix.
