Applying Cyclic Changes To The Sound (Lfo) - Roland JX-305 Owner's Manual

but the JX-305 also allows you to make more detailed
amplifier envelope settings.
fig.5-51TEXT (=MC fig.3-51)
Level
+
Time1(A) Time2 Time3(D)
0
Level1
Level2
Key on
Time1–4 (Amplifier Envelope Time 1–4)
Specifies the time until the next level point is reached.
This can be set for each of the four parameters Time
1–4.
Range: 0–127
Higher settings will lengthen the time until the next
level point is reached.
* The front panel parameter [ATTACK] (Attack Time) cor-
responds to Time1, [DECAY] (Decay Time) to Time3,
and [RELEASE] (Release Time) to Time4.
Level1–3 (Amplifier Envelope Level
1–3)
These parameters specify the volume at each point.
You can set the three points Level1–3.
Range: 0–127
Higher settings will also raise the volume.
* The front panel [SUSTAIN] (Sustain Level) corresponds
to Level3.
Velo Time1 (Amplifier Envelope
Velocity Time 1 Sensitivity)
Specifies how Time1 will be affected by the strength of
your playing on the keyboard.
Range: -100–+100
With positive (+) settings, Time1 will become faster as
you play the keyboard more strongly. With negative
(-) settings, Time1 will become slower as you play the
keyboard more strongly.
By setting Velocity Time 1 Sensitivity to positive (+)
settings you can create volume changes that will be
appropriate for strings-type sounds. The volume
attack will be gradual for softly-played notes, and
faster for strongly-played notes.
Time4(R)
Time
Level3(S)
Key off
Chapter 5. Creating Original Sounds (Patch Edit)
Velo Time4 (Amplifier Envelope
Velocity Time 4 Sensitivity)
Specifies how Time 4 will be affected by the speed at
which you release the keyboard.
Range: -100–+100
With positive (+) settings, Time4 will become faster as
you release the keyboard more quickly. With negative
(-) settings, Time4 will become slower as you release
the keyboard more quickly.
Time KF (Amplifier Envelope Time Key
Follow)
This parameter specifies how the amplifier envelope
times (Time2/3/4) will be affected by the key location.
Relative to the envelope of the C4 note, higher settings
of this parameter will cause greater change in enve-
lope times.
Range: -100–+100
With positive (+) settings, envelope times will become
shorter as you play higher notes. With negative (-) set-
tings, envelope times will become longer as you play
higher notes.
On instruments such as a piano, the volume decays
more rapidly for higher notes. This can be simulated
by setting Time Key Follow to positive (+) settings.
Delay Start
For example, by setting Level1 to "0" and adjusting
Time1 [ATTACK] appropriately, you can create
envelopes in which the sound does not begin until a
certain time after the key is pressed.
fig.5-52TEXT (=MC fig.3-52)
Time1(A) Time2 Time3(D) Time4(R)
Level1 Level2 Level3(S)
Key on Key off
Applying Cyclic Changes to
the Sound (LFO)
The LFO (Low Frequency Oscillator) applies cyclic
change to the sound. The JX-305 has two LFOs
(LFO1/LFO2), and each of these can be used to modi-
fy the pitch, cutoff frequency or volume of each tone to
create effects such as vibrato, wah and tremolo. Since
both LFOs have the same parameters, the following
explanation will cover both of them.
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