Roland XV-88 owner manual Creating Patches TVA Time ENV TVA Time Envelope, TVA Envelope

Chapter 5. Creating Patches

TVA TIME ENV (TVA Time Envelope)

Here you can make settings for the TVA envelope (time-

variant changes in volume).

V-T1 (TVA Envelope Time 1 Velocity Sensitivity)

Use this parameter when you want keyboard playing (velocity) to affect T1 (Time 1) of the TVA envelope. If you want T1 time to be speeded up for strongly played notes, set this parameter to a positive (+) value. If you want it to be slowed down, set this to a negative (-) value.

V-T4 (TVA Envelope Time 4 Velocity Sensitivity)

Use this parameter when you want key-release speed to influence the T4 (Time 4) value of the TVA envelope. If you want T4 time 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.

Time Keyfollow

(TVA Envelope Time Keyfollow)

Use this parameter when you want keyboard position to affect TVA envelope times (T2–T4). 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. Higher values will cause more change.

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

TVA ENVELOPE

T1–T4 (TVA Envelope Time 1–4) ★

Specify the TVA envelope times (T1–T4). Larger values result in longer times until the next volume is reached (for instance, T2 controls the time from L1 until L2 is reached).

To edit the overall Patch while preserving the relative differences in the T1 parameter (Attack Time) values set for each Tone, set the Atk parameter (PATCH/ COMMON/PATCH MODIFY) (p. 71). Similarly, to edit the overall Patch while preserving the relative differences in the T4 parameter (Release Time) values set for each Tone, set the Rel parameter (PATCH/ COMMON/PATCH MODIFY) (p. 72).

L1–L3 (TVA Envelope Level 1–3)

Specify the TVA envelope levels (L1–L3). These settings specify how the volume will change at each point, relative to the standard volume (the Tone Level value specified in the TVA page).

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

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