SETTlNG UP
In this section you will learn how to prepare the WX7 for
playing, and connect it up to your MIDI synthesizer or tone
generator. Information will also be given on how to set up
your MIDI sound source to be controlled by the WX7.
CONNECTION OF THE MIDI/POWER PACK
Plug the MIDI/DC cord coming from the MIDI/DC Power
Pack into the MIDI/DC jack of the WX7. In both cases,
the connection can be locked by turning the outer sleeve of
the connecting plug.
A strap on the case of the MIDI/Power Pack lets you attach
it to your belt. You can also use the 5-meter (15-foot)
MIDI/DC extension cord which allows you to put the
MIDI/Power Pack in any convenient location. Extra
MIDI/DC extension cords may be purchased, but it is not
recommended that you use more than three extension cords,
as MIDI signals may deteriorate if the cable length is more
than 15 meters (45 feet).
CONNECTION TO THE MIDI SOUND SOURCE
Use the supplied MIDI cable or any standard MIDI cable
to connect the MIDI OUT jack of the MIDI/Power Pack to
the MIDI IN jack of your MIDI synthesizer or tone generator.
The diagram below shows how the WX7 can be connected
for controlling a TX81Z tone generator, but a virtually lim-
itless number of other configurations using many different
kinds of MIDI devices are also possible. Please refer to the
MIDI AND APPLICATIONS section for more information
on how to use the WX7 with a MIDI system.
SETTING THE MIDI SOUND SOURCE
Three vital points must be remembered when setting up your
MIDI Synthesizer or tone generator to be controlled by the
WX7:
(1) MIDI data can actually be sent on any of 16 “MIDI
channels”, allowing instruments within a complex
MIDI system to communicate independently. When
two MIDI instruments communicate, they should be
set to the same MIDI channel. The WX7 normally
TRANSMITS MIDI data on MIDI channel 1, so your
MIDI sound source should be set to RECEIVE MIDI
data on MIDI channel 1 (or it can be set to OMNI,
a MIDI mode which allows it to receive MIDI data
on all 16 MIDI channels).
In the Dual Play mode, the WX7 can be used to transmit
MIDI data on two separate MIDI channels. You can also
change the MIDI Transmit channel of the WX7. Refer to
THE DIP SWITCHES section (DIP Switches #5 and #6) for
more information.
(2) The MIDI sound source should normally be set to
receive MIDI Breath Control data. On the Yamaha
DX7II synthesizer, for example, this is known as “BC”
and can be independently set for each voice. Four
parameters (functions) can be controlled by BC, as
follows:
l
Pitch Modulation (vibrato level)
l
Amplitude Modulation (tremolo level)
l
EG Bias (volume and/or timbre)
l
Pitch Bias (Pitch)
Each parameter can be individually set, over a wide range.
The setting of BC parameters directly affects the way breath
pressure from the WX7 will control the selected voice.
(3) The maximum amount of Pitch Bend that can be created
by lip pressure or by use of the Pitch bend Wheel on
the WX7 is set by adjusting the Pitch Bend parameter
on your MIDI sound source. For example, on the
DX7II synthesizer, Pitch Bend can be adjusted over a
range of 1 thru 12 half-steps (semitones). Each of the
DX7II’s 64 voices can be set to a different Pitch Bend
level, to suit both the timbre of the voice, and your
playing style.
USE OF NON-BC COMPATIBLE MIDI DEVICES
If your MIDI sound source cannot receive BC data, but can
receive After Touch and MIDI Volume data, the WX7 can
be switched to transmit these types of MIDI data. Refer to
DIP Switches #l and #2 in THE DIP SWITCHES section.
In this case, you should set the After Touch and MIDI Volume
parameters for each voice on your MIDI sound source.
8