Applying Vibrato Or Tremolo ([F5 (Lfo&Ctl)]) - Roland XV-5080. Owner's Manual

Applying Vibrato or Tremolo ([F5
(LFO&CTL)])
The LFO (Low Frequency Oscillator) can alter various Tone
settings in a back-and-forth, cyclic manner. Each Tone has
two LFOs, and each can apply the desired amount of
repetitive change to the Tone's Pitch, TVF cutoff frequency,
TVA Level and TVA Pan settings. This can be used as the
Matrix Control source (p. 146).
How to Use the LFO
Applying an LFO to the Tone's Pitch settings creates vibrato,
applying it to its TVF cutoff frequency creates a wah-wah,
and applying it to its TVA Level creates tremolo. When an
LFO is applied to the Tone's TVA Pan, the sound moves back
and forth, from one side to another, in the stereo field.
Depending on your settings, an LFO can also be used to
cyclically exchange two Tones. For example, if you wish to
shift back and forth between Tones 1 and 2, select the same
LFO settings for both, but set their LFO TVA Depth settings
to opposite polarities – set one to a + value, and the other to a
- value.
PATCH LFO&Ctrl LFO1/2 page ([PATCH]
- [F5 (LFO&CTL)] - [F1 (LFO 1)]/[F2 (LFO
2)])
fig.04-050.e_70
Wave (LFO Wave)
Form (LFO Form)
Available Settings:
Selects the waveform of the LFO.
SIN: sine wave
TRI: triangle wave
SAW-UP: sawtooth wave
SAW-DW: sawtooth wave (negative polarity)
SQR: square wave
RND: random wave
BEND-UP: Once the attack of the waveform output by the
LFO is allowed to develop in standard fashion, the waveform
then continues without further change.
BEND-DW: Once the decay of the waveform output by the
LFO is allowed to develop in standard fashion, the waveform
then continues without further change.
TRP: trapezoidal wave
Chapter 4 Creating Patches
S&H: sample & hold wave (one time per cycle, LFO value is
changed)
CHAOS: chaos wave
* When setting "BEND-UP" or "BEND-DW," set the Key
Sync parameter to "ON." If this is "OFF," it will have no
effect.
Offset (LFO Offset)
Range: -100– +100
Adjusts the basic value of the LFO waveform upward or
downward.
Rate (LFO Rate)
Range: 0–127/Note
Adjusts the basic modulation rate, or speed, of the LFO.
* The Chaos waveform has no wavelength. When the Chaos
waveform is selected, the Rate setting has no effect.
* For more information on the types of notes, refer to the
Parameter List (p. 241).
Detune (LFO Rate Detune)
Range: 0–127
This setting allows you to adjust the tuning of the LFO
waveform.
Delay (LFO Delay)
Time (LFO Delay Time)
Range: 0–127
This sets the time interval between the moment when a key is
pressed (or released) and the moment the LFO begins to take
effect. (Refer to the diagrams for Fade Mode.)
Keyfolw (LFO Delay Keyfollow)
Range: -100– +100
Adjusts the value for the LFO1/LFO2 Delay Time parameter
depending on the key position, relative to the C4 key (center
C). To decrease the time that elapses before the LFO effect is
applied (the effect is continuous) with each higher key that is
pressed in the upper registers, select a positive value; to
increase the elapsed time, select a negative value. Higher
values will cause greater change. If you do not want the
elapsed time before the LFO effect is applied (the effect is
continuous) to change according to the key pressed, set this
to "0."
145