13
Basic operation
This section introduces you to the overall design and organization the SD-90, and explains basic
operation. Please make sure to read this section, since it is sure to help you gain a better understanding of
your new unit.
How the SD-90 is organized
The SD-90 consists of the following three blocks. For details on each block, refer to the corresponding
page.
fig.2-01
• The
internal sound generator
, which receives MIDI messages from the USB connector (or MIDI IN
connectors) and produces sound
->"Using the internal sound generator"
• The
audio mixer
, which determines the flow of audio signal inputs and outputs
• The
effect block
, which applies effects to all audio sources
->"Using the audio effects" (p. 61)
Routes to the computer
via USB connector
OUTPUT jacks
Digital OUT jack
MIDI messages
from the USB connector
Audio signals
from the USB connector
MIC/GUITAR/LINE IN
Audio
Mixer
MIDI sound
generator
Audio
effects
Digital IN jack
SD-90
Adjusting the volume in the main screen
In the main screen (the screen that appears immediately after you turn on the power), the
[V1]
–
[V3]
knobs
and the
[VOLUME]
knob will adjust the volume of each block.
fig.dummy
[VOLUME]
knob:
The audio signal that is output from the
Headphone
jack and the rear panel
OUTPUT 1
jacks
[V1] knob:
The digital audio signal that is sent from your
computer via the USB cable and input to the SD-90
[V2] knob:
The internal sound generator
[V3] knob:
The audio signal that is input at the analog jacks
sd90_manual_e.book 13 ページ 2004年10月4日 月曜日 午後3時28分