Rodgers 538 insignia, Руководство пользователя

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Rodgers 538/i548
47
(4) Save your settings if you wish to keep them.
See page 54.
(5) Press and hold the
[ø¥EXIT]
piston to return to the
main page.
Octave
Normally, sounds controlled by MIDI couplers play at
concert pitch; playing middle C on an organ keyboard
with a corresponding MIDI coupler active will cause
middle C to be heard. The “Octave” function allows you
to shift sounds controlled by MIDI couplers up or down
by one or two octaves. Each MIDI coupler can be shifted
independently.
When controlling a single sound from a keyboard or
pedal, Octave Shift allows the instrument to play in a
range that may be more appropriate; for example, you
can shift a Tuba down one octave so that it plays at a
more normal pitch.
Shifting the octave of a MIDI coupler up or down by
octaves:
(1) First of all, set the desired ORCH/MIDI tab
coupler(s) to “MIDI” rather than “ORCH”. Please
refer to “Enabling MIDI” on p. 44.
(2) Press and hold the
[SET]
piston.
(You can also press
[QUICK¥MENU]
, select “MIDI
Setting”, the division and the parameter.)
(3) Press the upper half of the desired ORCH/MIDI tab
( PEDAL , MAN I or MAN II ).
It flashes to signal that a MIDI setting can be made.
(4) Use the Select knob to select the “Oct” parameter.
(5) Rotate the data entry wheel to select the desired
setting (“Dwn 2”, “Dwn 1”, “Nor”, “Up 1” or “Up 2”).
The “Oct” selection procedure is complete. Memories
that are set while the MIDI coupler is activated, will
also store the setting.
(6) Save your settings if you wish to keep them.
See page 54.
(7) Press and hold the
[ø¥EXIT]
piston to return to the
main page.
Velocity
MIDI note velocity controls the attack quality and
loudness of MIDI sounds. It relates to the amount of
force used by the organist when striking a key and
ranges from “2” (extremely light) to “127” (extremely
hard). In addition to obvious changes in volume at
higher velocities, the timbral nature of sounds can also
change, which usually also make the sound brighter.
Rodgers organs can transmit a constant (fixed) velocity
value from the keyboard, a variable velocity value
relative to the position of the expression shoe or a
velocity value controlled by the actual force of the
fingers.
Velocity control can be individually selected for each
ORCH/MIDI tab.
To summarize:
• Fixed Velocity (1~127): The keyboard sends a fixed
value between “1” and “127”.
• Keyboard velocity (Kbd): The keyboard responds to
velocity of your fingers.
• Expression Velocity (EXP): Velocity value is controlled
by the position of the expression shoe.
Fixed Velocity (1~127)
With fixed velocity, the same velocity value is used
for all notes played by a MIDI coupler. The velocity
can be set to any value from “1” to “127”.
It is often useful to use this parameter to adjust the
overall volume and attack characteristic of sounds
controlled via MIDI. Reducing the velocity value
would make an instrument softer; increasing the
value would make it louder.
(1) First of all, set the desired ORCH/MIDI tab
coupler(s) to “MIDI” rather than “ORCH”. Please
refer to “Enabling MIDI” on p. 44.
(2) Press and hold the
[SET]
piston.
(You can also press
[QUICK¥MENU]
, select “MIDI
Setting”, the division and the parameter.)
(3) Press the upper half of the desired ORCH/MIDI tab
( PEDAL , MAN I or MAN II ).
General MIDI and GS Format
In the past, most MIDI sound modules provided a
maximum of 128 sounds. These were selected via MIDI
Program Change messages. Unfortunately, there were no
standard sound assignments for those messages. For
example, one sound module may have had a Trumpet on
Program Change #39, yet another sound module would
have Chimes on #39.
With the creation of General MIDI (GM), a standard list
of 128 sounds was defined, each of which corresponds
to one of the 128 available Program Change messages.
The GS Standard honors that same standard list of GM
sounds, but also allows access to
more than those 128
sounds through the use of Bank Select messages (using
the MSB commands). The GS Standard adds the ability to
select up to 128 “Variations” of each of the 128 standard
GM sounds, expanding the total number of possible
sounds to 16,384.
For example, Program Change #1 in a GM module
specifies
Piano 1 . A GS module will also have Piano 1
for Program Change #1 but, in addition, can have 127
other variations of that particular sound.
The GM instruments are often referred to as “Bank 0”
sounds; the GS variations of that sound will be in other
Banks: Bank 8, Bank 16, etc.
Many manufacturers of MIDI sound modules have
added—or will soon add—support for GS Format.
Rodgers 538_i548.book Page 47 Monday, February 4, 2008 9:02 AM