Roland XV-88 Electronic Keyboard User Manual


 
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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 (T1T4). 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 (L1L4). 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).
fig.05-74.e
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
fig.05-75
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 210 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).
T1 T2 T3 T4
L3
L1
L0
L2 L4
Note off
Cutoff
Frequency
Time
Note on