Roland Piano Modulating Sounds LFO, Creating a Patch, Env Time KF TVA Envelope Time Key Follow

Creating a Patch

Env T4 V-Sens (TVA Envelope Time 4 Velocity Sensitivity)

The parameter to use when you want key release speed to control the Time 4 value of the TVA envelope. If you want Time 4 to be speeded up for quickly released notes, set this parameter to a positive (+) value. If you want it to be slowed down, set this to a negative (-) value.

Value: -63– +63

Env Time KF (TVA Envelope Time Key Follow)

Use this setting if you want the TVA envelope times (Time 2–Time 4) to be affected by the keyboard location. Based on the TVA envelope times for the C4 key (center C), positive (+) settings will cause notes higher than C4 to have increasingly shorter times, and negative (-) settings will cause them to have increasingly longer times. Larger settings will produce greater change.

Value: -100, -90, -80, -70, -60, -50, -40, -30, -20, -10, 0, +10, +20, +30, +40, +50, +60, +70, +80, +90, +100

Time
						+100
						+50
						0
						-50
						-100	Key
C1	C2	C3	C4	C5	C6	C7

Env Time 1–4 (TVA Envelope Time 1–4) ★

Specify the TVA envelope times (Time 1– Time 4). Higher settings will lengthen the time until the next volume level is reached. (For example, Time 2 is the time over which Level 1 will change to Level 2.)

Value: 0–127

To edit the overall patch while preserving the relative differences in the Env Time 1 parameter (Attack Time) values set for each tone, set the Attack Time Offset parameter (PATCH/ General) (p. 48). Similarly, to edit the overall patch while preserving the relative differences in the Env Time 4 parameter (Release Time) values set for each tone, set the Release Time Offset parameter (PATCH/General) (p. 48).

Env Level 1–3 (TVA Envelope Level 1–3)

Specify the TVA envelope levels (Level 1–Level 3). These settings specify how the volume will change at each point, relative to the standard volume (the Tone Level value specified in the TVA screen). Value: 0–127

T1	T2		T3	T4
Level
				Time
L1		L2		L3
Note on				Note off
T: Time		L: Level

The envelopes appearing at the lower part of the TVA settings screen graphically depict the current values of the settings. Solid lines represent the TVA envelope, while dotted lines are used for the TVF envelope. This lets you compare the TVA and TVF envelopes while you make settings.

Modulating Sounds (LFO)

For details on the setting, refer to “How to Make the Patch Settings” (p. 42).

An LFO (Low Frequency Oscillator) causes change over a cycle in a sound. Each tone has two LFOs (LFO1/LFO2), and these can be used to cyclically change the pitch, cutoff frequency and volume to create modulation-type effects such as vibrato, wah and tremolo. Both LFOs have the same parameters so only one explanation is needed.

LFO

1:/2:Waveform (LFO1/LFO2 Waveform)

Selects the waveform of the LFO.

Value

SIN: Sine wave

TRI: Triangle wave

SAW-U:Sawtooth wave

SAW-D:Sawtooth wave (negative polarity)

66