Oberheim OB 12, Operating Manual

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OB 12 Z-Domain Synthesizer
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The purpose of this function is setting of the procedure for reception and transmission of MIDI
messages, with consequent definition of the channels.
This video page contains the MODE parameter which defines this procedure: by setting this
parameter as GLOBAL, you can set the single MIDI channel for reception and transmission of
messages using the CHANNEL option. In this case, the message received will be played on the
basis of the Split settings present on the instrument at that time.
If the MODE parameter is set as MULTI, the video page will change to:
In this case, you will be able to assign one channel to each individual Part. The CHANNEL 1, 2, 3,
4 fields identify the four Parts to which the MIDI channel can be assigned. For example, if CHANNEL
1 = 2 is set, the message generated with Part 1 will be sent on MIDI channel 2, just as messages
received on channel 2 will be played by Part 2, regardless of the keyboard zone assigned to the
Part concerned. This allows you to obtain optimum multi-timbre setups by sending the messages
in relation to the Part being used to play, as well as recording the channelled messages on a
sequencer. During reception, on the other hand, the main feature of this setting is that it allows the
Part split settings to be ignored, so that the Parts can be played throughout the whole keyboard
range.
After selecting the IN FLT folder using the [F2] function key, you can display the video page
relating to the setup of the MIDI filters on the incoming messages. If a message is filtered (i.e. with
the filter set as ON), it will be ignored. Therefore if the reception filters are activated, the messages
subject to the action of the filter will not be acquired, regardless of the channel on which they are
received.
The following is the video page:
showing the types of message to which the reception filter can be applied:
•
NOTE: enables (ON) or disables (OFF) the filter for the note messages.
•
PG
(Program Change)
: enables (ON) or disables (OFF) the filter for the Program Changes
messages.
•
CC
(Control Change)
: enables (ON) or disables (OFF) the filter for the Control Change messages.
•
AFTERT.
(Aftertouch)
: enables (ON) or disables (OFF) the filter for the Aftertouch messages.
•
PB
(Pitch Bender)
: enables (ON) or disables (OFF) the filter for the Pitch Bend messages.
•
SYS-EX
(System Exclusive)
: enables (ON) or disables (OFF) the filter for the System exclusive
messages.