Roland JD-XA - JD-XA Introduction and Basic Operations; Turning Power On and Off; Selecting Sounds and Parts

8
Analog Part
Menu
[Shift] + Cursor [
K
] [
J
]
Parameter
Cursor [
K
] [
J
]
Value
Value [-] [+]
Explanation
OSC1
(Oscillator 1)
Waveform
SAW
T
: Sawtooth wave
This waveform contains a sine wave fundamental plus a xed proportion of sine wave
harmonics at all integer multiples of that fundamental.
SQR
U
: Square wave
This waveform contains a sine wave fundamental plus a xed proportion of sine wave
harmonics at odd-numbered multiples of that fundamental.
PW-SQR
V
: Asymmetrical square wave
The overtone structure of this waveform will vary signicantly depending on the width of the
upper portion of the waveform (Pulse Width).
TRI
S
: Triangle wave
This waveform contains a sine wave fundamental plus a xed proportion of sine wave
harmonics at odd-numbered multiples of that fundamental. It produces an uncolored sound
with fewer overtones than a square wave.
SIN
R
: Sine wave
This is a sine wave. This is a waveform that produces just a single frequency; it is the basis of all sound.
Pitch Range
(OSC Pitch Range)
0oct, 1oct, 2oct, 3oct,
4oct
Species the range of the Pitch parameter in units of an octave.
Pitch
(OSC Pitch)
-48–0–+48
Adjusts the pitch in semitone steps.
The range of this setting depends on the Pitch Range setting.
Fine
(OSC Fine Tune)
-50–0–+50 Adjusts the pitch in steps of one cent.
PWM-Depth
(Pulse Width Modulation Depth)
0–127
Species the amount (depth) of LFO applied to PW (Pulse Width). If the Waveform has selected
V
(PW-SQR), you can use this slider to specify the amount of LFO modulation applied to PW
(pulse width).
* This is valid if LFO PW Dst (LFO Pulse width Destination) is set to OSC1+2 or OSC1.
PW
(Pulse width)
0–127
Species the pulse width.
If the Waveform has selected
V
(PW-SQR), you can use this slider to specify the width of the
upper portion of the square wave (the pulse width).
Decreasing the value will decrease the width, approaching a square wave (pulse width = 50%).
Increasing the value will increase the width, producing a distinctive sound.
Cross Mod
(Cross Modulation)
0–127 Species the amount by which the A-OSC2/AUX waveform modulates the A-OSC1 frequency.
Ring Sw
(Ring Switch)
OFF, ON
Produces a metallic tonal character by multiplying A-OSC1 and A-OSC2/AUX.
A-OSC1
waveform
A-OSC2/AUX
waveform
A-OSC1
waveform
Mod Src
(Modulation Source)
OSC2
AUX
Selects the waveform (A-OSC2/AUX) that will be the source of Cross Mod/Ring Sw modulation.
* If Mod Src is set to AUX, the sound of AUX (White Noise, Pink Noise, Digital Part, MIC) will not
be heard even if you raise AUX Level. AUX will be used only as a modulation source signal.
OSC2
(Oscillator 2)
Waveform
SAW
T
: Sawtooth wave
This waveform contains a sine wave fundamental plus a xed proportion of sine wave
harmonics at all integer multiples of that fundamental.
SQR
U
: Square wave
This waveform contains a sine wave fundamental plus a xed proportion of sine wave
harmonics at odd-numbered multiples of that fundamental.
PW-SQR
V
: Asymmetrical square wave
The overtone structure of this waveform will vary signicantly depending on the width of the
upper portion of the waveform (Pulse Width).
TRI
S
: Triangle wave
This waveform contains a sine wave fundamental plus a xed proportion of sine wave
harmonics at odd-numbered multiples of that fundamental. It produces an uncolored sound
with fewer overtones than a square wave.
SIN
R
: Sine wave
This is a sine wave. This is a waveform that produces just a single frequency; it is the basis of all
sound.
Phase Sync
(OSC Phase Sync Switch)
OFF, ON If this is ON, the phase of OSC1 and OSC2 is synchronized when you play the keyboard.
Pitch Range
(OSC Pitch Range)
0oct, 1oct, 2oct, 3oct,
4oct
Species the range of the Pitch parameter in units of an octave.
Pitch
(OSC Pitch)
-48–0–+48
Adjusts the pitch in semitone steps.
The range of this setting depends on the Pitch Range setting.