Roland XV-88 owner manual Adjusting the Volume and Pan TVA, Tva

Chapter 5. Creating Patches

V-T4 (TVF Envelope Time 4 Velocity Sensitivity)

The parameter to use when you want key release speed to control the T4 (Time 4) value of the TVF 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.

L0 (TVF Envelope Level 0)

Sets the TVF envelope level (L0). TVF Envelope Level 0 determines the degree to which the Cutoff frequency for the sound at the instant the key is pressed is altered relative to the reference Cutoff frequency (the Cutoff frequency value set in the TVF FILTER page).

T1–T4 (TVF Envelope Time 1–4) ★

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

L1–L4 (TVF Envelope Level 1–4)

Specify the TVF envelope levels (L1–L4). These settings specify how the cutoff frequency will change at each point, relative to the standard cutoff frequency (the cutoff frequency value specified in the TVF FILTER page).

	T1	T2	T3	T4
Cutoff
Frequency	L0			Time
	L1	L2	L3
				L4
	Note on			Note off

Adjusting the Volume and Pan (TVA)

Here you can make settings for the TVA (Time Variant Amplifier). This specifies the volume change and pan of the Tone.

TVA

Level (Tone Level) ★

Sets the volume of the Tone. This setting is useful primarily for adjusting the volume balance between Tones.

The overall volume of the Patch is set by the Level parameter (PATCH/COMMON/PATCH LVL&PAN), and the Tone level setting is multiplied to this setting (p. 70).

Pan (Tone Pan) ★

Sets the pan of the Tone. A setting of L64 is far left, 0 is center, and 63R is far right.

The overall panning of the entire Patch is set by the Pan parameter (PATCH/COMMON/PATCH LVL&PAN), and the Tone Pan setting is added to this setting (p. 70).

When any value from Type 2–10 is selected for the Type parameter (PATCH/COMMON/STRUCT) in the Pan parameter settings, the output of Tones 1 and 2 are joined in Tone 2, and the output of Tones 3 and 4 are joined in Tone 4. This means that the setting of Tone 1 will follow the setting of Tone 2, and the setting of Tone 3 will follow the setting of Tone 4 (p. 73).

V-Sens (TVA Envelope Velocity Sensitivity)

Specifies how keyboard playing dynamics will affect the depth of the TVA envelope. Positive (+) settings will cause the TVA envelope to have a greater effect for strongly played notes, and negative (-) settings will cause the effect to be less.

To edit the overall Patch while preserving the relative differences in the TVA Envelope Velocity Sensitivity values set for each Tone, set the Velocity Sens parameter (PATCH/COMMON/PATCH MODIFY) (p. 72). However, this setting is shared by the V-Cutoff parameter (PATCH/TVF/TVF VELOCITY) (p. 89).

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