User Manual

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INSTRUCTIONS FOR MIDI INTERFACE

OBERHEIM 4 VOICE SYNTHESISER

USING THE MIDI INTERFACE - - -

When you turn on the synthesiser for the first time, you will be in

omni-on mode for receive (all channels) -

See next page for factory default settings

When you select a receive channel, this will be stored in memory and

will be remembered for when you subsequently turn on the synth - all

parameters listed on the next page are stored.

If you want to put the machine back to the factory default settings

at any time, switch the synth on whilst holding the red push button

pressed - hold for a couple of seconds then release.

RED PUSH BUTTON

Two modes are available by pushing the red push button. Before you

press the red button however, make sure that no notes are pressed on

the synth otherwise the results may be unpredictable.

1) SET-UP MODE - Setting MIDI channels and assignments.

Give the red push button a short press (half a second) - then release.

Follow this with a note or sequence of notes (on the remote keyboard)

as detailed on page 2. After selecting a channel you will be

automatically returned to playing mode but after making assignments

you will need to press the ENTER key (Top C) to return to playing mode.

This is to enable you to make the multiple key presses required when

re-assigning sources to destinations.

(N.B. set-ups are stored in non volatile memory).

2) TRANSPOSE MODE -

Press and hold the red push button for four seconds - then release.

Middle C will sound on the synth and continue to sound until you

press a key (on the remote keyboard). The note that you press will

become the new middle C for MIDI IN. You can set any value up to two

octaves up or down. Settings outside this range will be ignored.

Note that transpose mode cannot be entered from set-up mode.

ASSIGNING MIDI CONTROL SOURCES TO DESTINATIONS - - -

SOURCES DESTINATIONS (d)=factory default

AFTERTOUCH off / modulation (d)/ p.bend / vcf / ***

CONTROLLER X off / vcf (d)/ *** (*** = not used on this synth)

CONTROLLER Y off / vcf / *** (d)

VELOCITY off (d) / vcf

Sources can control more than one destination at once, but a

destination can only be controlled by one source at a time. Thus if

velocity is currently controlling VCF and then you switch aftertouch

to VCF, velocity will then control nothing until re-assigned.

Summary of content (4 pages)

PAGE 1
INSTRUCTIONS FOR MIDI INTERFACE OBERHEIM 4 VOICE SYNTHESISER USING THE MIDI INTERFACE - - When you turn on the synthesiser for the first time, you will be in omni-on mode for receive (all channels) See next page for factory default settings When you select a receive channel, this will be stored in memory and will be remembered for when you subsequently turn on the synth - all parameters listed on the next page are stored.
PAGE 2
C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Db D Eb E F Gb G Ab A Bb B C Receive channel 1 [ Bottom C ] MIDI note number 36 " " 2 " " 3 " " 4 " " 5 " " 6 " " 7 " " 8 Selecting a receive channel " " 9 will automatically put the " " 10 MIDI into omni off mode. " " 11 That is, it will receive on " " 12 the selected channel only.
PAGE 3
NOTES 1) Controller X can be any MIDI controller. After pressing the red push button twice to enter SET-UP mode, operate the required MIDI controller before pressing the C or Db key that will assign it to VCF or ***. If you do not operate a controller before pressing the C or Db key, then controller X will respond to MIDI controller 16 - that is General purpose controller 1 (10 hexadecimal) 2) Controller Y can be any MIDI controller.
PAGE 4
MIDI CONTROL OF RED PUSH BUTTON The red push button can be "pressed" via MIDI as MIDI switch number 95 (5Fh) for regular program mode or 94 (5Eh) for transpose mode. The selection of the push button is enough, it doesn’t matter if it is being turned on or off. In hexadecimal BX - 5F - 00 = program mode In hexadecimal BX - 5E - 00 = transpose mode Where X is the current MIDI channel. [n.b.