Roland Piano owner manual Booster, Creating a Patch, WG1 TVA, Ring Modulator

Creating a Patch

Booster

The Booster is used to distort the incoming signal.

fig.Booster-1.e

Booster level

In addition to using this to create distortion, you can use the waveform (WG1) of one of the tones as an LFO which shifts the other waveform (WG2) upward or downward to create modulation similar to PWM (pulse width modulation). This parameter works best when you use it in conjunction with the Wave Gain parameter (PATCH/Wave) (p. 59).

fig.Booster-2.e

Uses WG1 as LFO Adjusts WG1 output

WG1 TVA

Booster

WG2

WG2

Adds to WG1

Distorted area of the

Waveform changes

Shift in waveform by WG1

Ring Modulator

A ring modulator multiplies the waveforms of two tones with each other, generating many new overtones (inharmonic partials) which were not present in either waveform. (Unless one of the waveforms is a sine wave, evenly-spaced frequency components will not usually be generated.)

As the pitch difference between the two waveforms changes the harmonic structure, the result will be an unpitched metallic sound. This function is suitable for creating metallic sounds such as bells.

fig.Ring Mod

Key Fade Lower (Keyboard Fade Width Lower)

This determines what will happen to the tone’s level when a note that’s lower than the tone’s specified keyboard range is played. Higher settings produce a more gradual change in volume. If you don’t want the tone to sound at all when a note below the keyboard range is played, set this parameter to “0.”

Value: 0–127

Key Range Lower (Keyboard Range Lower)

Specifies the lowest note that the tone will sound for each tone.

Value: C-1–UPPER

Key Range Upper (Keyboard Range Upper)

Specifies the highest note that the tone will sound for each tone. Value: LOWER–G9

If you attempt to raise the lower key higher than the upper key, or to lower the upper key below the lower key, the other value will be automatically modified to the same setting.

Key Fade Upper (Keyboard Fade Width Upper)

This determines what will happen to the tone’s level when a note that’s higher than the tone’s specified keyboard range is played. Higher settings produce a more gradual change in volume. If you don’t want the tone to sound at all when a note below the keyboard range is played, set this parameter to “0.”

Value: 0–127

Level

Pitch

Fade Lower				Fade Upper
	Range	Lower	Range	Upper

TMT Vel Control (TMT Velocity Control Switch)

TMT Velocity Control determines whether a different tone is played (ON) or not (OFF) depending on the force with which the key is played (velocity).

When set to “RND,” the patch’s constituent tones will sound randomly, regardless of any Velocity messages.

Value: OFF, ON, RND

Instead of using Velocity, you can also have tones substituted using the Matrix Control (p. 55). However, the keyboard velocity and the Matrix Control cannot be used simultaneously to make different tones to sound. When using the Matrix Control to switch tones, set the TMT Vel Control parameter to “OFF.”

58