Roland rd-170 业主指南
RD-170 Edit parameters and Setup memories
24
r
MIDI channel
→[MIDI]
This parameter allows you to assign the desired
MIDI channel to the Upper or Lower part. That
channel is used for transmitting (when you play on
the RD-170) and receiving (when the RD-170 is
used as tone generator) MIDI data.
MIDI channel to the Upper or Lower part. That
channel is used for transmitting (when you play on
the RD-170) and receiving (when the RD-170 is
used as tone generator) MIDI data.
Note that you should not assign the same MIDI
channel to the Upper and Lower parts. Furthermore,
it would be wiser not to select the MIDI channel you
define as “basic channel” (see p. 31).
channel to the Upper and Lower parts. Furthermore,
it would be wiser not to select the MIDI channel you
define as “basic channel” (see p. 31).
(1) Press [EDIT] (lights), followed by [4].
Press and hold [4] to display the abbreviated
function name.
function name.
(2) Press the [UPPER] (red) or [LOWER] (green)
button to select the part whose setting you
want to change.
want to change.
(3) Use [DEC÷NO]/[INC÷YES] to select the channel
number (1~16) or off (neither transmit, nor
receive MIDI data).
receive MIDI data).
(4) Press [EXIT] (or [EDIT]) to leave the Edit mode
or select the other part and change its setting
too.
too.
Note: This setting can be saved (see p. 28).
Bank Select and Program
Change messages
→[MIDI]
To take advantage of these and the remaining Edit
functions, you need to connect the RD-170 as fol-
lows:
functions, you need to connect the RD-170 as fol-
lows:
Nowadays, most MIDI instruments and effects
devices contain a lot more than 128 sounds/memo-
ries. When the MIDI standard was developed, some
20 years ago, 128 memories seemed a lot, which is
why it was decided to use a dedicated message type
(Program Change) for selecting memories on an
external device.
devices contain a lot more than 128 sounds/memo-
ries. When the MIDI standard was developed, some
20 years ago, 128 memories seemed a lot, which is
why it was decided to use a dedicated message type
(Program Change) for selecting memories on an
external device.
The entire MIDI standard evolves around the magic
number “128”. Given that there is no way of
expanding that number, so-called Bank Select mes-
sages were later added to accommodate the grow-
ing number of memories (synthesizers with more
than 2,000 sounds are quite common these days).
number “128”. Given that there is no way of
expanding that number, so-called Bank Select mes-
sages were later added to accommodate the grow-
ing number of memories (synthesizers with more
than 2,000 sounds are quite common these days).
At the time, neither CC00, nor CC32 had dedicated
functions and so these two control change mes-
sages were appointed for bank selection.
functions and so these two control change mes-
sages were appointed for bank selection.
Two bank addresses (“MSB” and “LSB”, a.k.a. CC00 &
CC32) with 128 possibilities each, plus 128 Program
Change numbers provide 128 x 128 x 128 possibili-
ties – a lot more than you can eat.
CC32) with 128 possibilities each, plus 128 Program
Change numbers provide 128 x 128 x 128 possibili-
ties – a lot more than you can eat.
On the RD-170, these three messages (CC00, CC32
and Program Change) are always sent as a set.
Transmitting only Bank Select messages does noth-
ing at all, while working only with Program Change
messages means that you are stuck with 128 mem-
ories in the currently active memory bank.
and Program Change) are always sent as a set.
Transmitting only Bank Select messages does noth-
ing at all, while working only with Program Change
messages means that you are stuck with 128 mem-
ories in the currently active memory bank.
That is why you need to transmit:
• A value for control change CC00 (MSB)
• A value for control number CC32 (LSB)
• A Program Change number
• A value for control number CC32 (LSB)
• A Program Change number
See the manual of the receiving MIDI instrument for
the MSB and LSB values it supports.
the MSB and LSB values it supports.
As soon as you press [ENTER] to confirm the Pro-
gram Change number (after first entering and con-
firming the CC00 and CC32 values), the selected
part (Upper or Lower) immediately transmits the
memory selection cluster. When you save your set-
tings to a Setup memory, these values are also
memorized and transmitted each time you select
that Setup memory.
gram Change number (after first entering and con-
firming the CC00 and CC32 values), the selected
part (Upper or Lower) immediately transmits the
memory selection cluster. When you save your set-
tings to a Setup memory, these values are also
memorized and transmitted each time you select
that Setup memory.
As you will notice, this procedure is very user-
friendly indeed: after pressing [5] to select CC00tr
and entering the desired value for CC00, pressing
friendly indeed: after pressing [5] to select CC00tr
and entering the desired value for CC00, pressing
Important remark: the following parameters only
apply to the selected part (Upper or Lower). Be sure
to select the part you wish to edit – and do not
forget to edit the other part if you’re not happy
with its current settings.
apply to the selected part (Upper or Lower). Be sure
to select the part you wish to edit – and do not
forget to edit the other part if you’re not happy
with its current settings.
Another important remark: see page 33 for the
basics about MIDI.
basics about MIDI.
2
Channel tr-rc
MIDI IN
MIDI OUT
MIDI IN
MIDI OUT
Module, synthesizer, sequencer, etc.
RD-170 MIDI IN: to receive MIDI messages
RD-170 MIDI OUT: to transmit MIDI messages
RD-170 MIDI OUT: to transmit MIDI messages
RD-170 OM_GB Page 24 Monday, March 17, 2003 10:23 AM