Roland XV-5080 Applying Vibrato or Tremolo F5 LFO&CTL, Rate LFO Rate, Delay LFO Delay, 145

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)])

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.Chap .4

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.”

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