71
System-related settings
■
USB mode
fig.7-2
MIDI messages received at the MIDI IN connectors
will not be passed directly to the internal sound
generator. They will be sent via USB to the computer
(sequencer software).
This means that if you have started up in
USB
mode
, playing an external MIDI keyboard
connected to a MIDI IN connector will not play the
SD-90’s internal sound generator. In order for the
MIDI messages received at the MIDI IN connectors
to be passed to the internal sound generator, you
must turn on the Thru function of your software
running on your USB-connected computer. “Thru”
is a function by which MIDI messages received from
the SD-90’s USB connector are retransmitted back to
the SD-90’s USB connector. If the Thru function is
turned on, the MIDI messages received at the MIDI
IN connectors will pass through the computer and
be passed to the SD-90’s internal sound generator,
causing sound to be produced.
*
The number of internal sound generator parts that can be
controlled from the USB connector will depend on the
capabilities of your sequencer software. This means that
even if you connect the SD-90 to your computer via USB,
you will not necessarily be able to use all 32 parts. Please
carefully read the owner’s manual for your sequencer
software.
■
MIDI mode
fig.7-3
The MIDI messages received at the MIDI IN
connectors will be passed directly to the internal
sound generator.
The SD-90 has two
MIDI IN connectors
, and each
MIDI IN connector can receive data for 16 Parts. In
MIDI mode
, when you play using the MIDI
connectors, group A corresponds to the MIDI IN 1
connector and group B corresponds to the MIDI IN 2
connector. In other words, the MIDI messages
received at MIDI IN 1 will play Parts 01–16 of group
A, and the MIDI messages received at MIDI IN 2 will
play Parts 01–16 of group B. For example, a MIDI
message received at MIDI IN 1 on channel 5 will play
Group A Part 5 (A05) (when still set to the default
settings).
*
If you want to change the correspondence of Parts to MIDI
channels, you can send the System Exclusive message
Rx.CHANNEL
via MIDI.
THRU function : ON
MIDI OUT 2
USB
MIDI OUT 1
SD-90
MIDI IN 2
MIDI IN 1
THRU
ON/OFF
THRU
ON/OFF
Part group A
Part A1 - A16
Part group B
Part B1 - B16
SD-90
USB
MIDI
interface
MIDI OUT 2
MIDI OUT 1
MIDI IN 2
MIDI IN 1
Part group A
Part
A1 - A16
Part group B
Part
B1 - B16
THRU
ON/OFF
THRU
ON/OFF
sd90_manual_e.book 71 ページ 2004年10月4日 月曜日 午後3時28分