Roland XV-88 Manuale Utente

Use this parameter when you want the keyboard location of 
notes to affect times T2–T4 of the pitch envelope. Based on 
the pitch envelope times for the C4 key, 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 settings result in more 
change.

fig.05-54.e

Use this parameter when you want keyboard playing 
dynamics (velocity) to affect T1 (Time 1) of the pitch 
envelope. Positive (+) settings will cause T1 to speed up for 
strongly played notes, and negative (-) settings will cause it 
to slow down.

Use this parameter when you want key release speed to 
impact on T4 (Time 4) value of the pitch 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.

Specifies the pitch envelope level (L0). Pitch Envelope Level 
0 determines the degree to which the pitch of the sound at 
the instant the key is pressed is altered relative to the 
reference pitch (the Coarse Tune or Fine Tune value set in the 
PITCH page). Positive (+) settings will cause the pitch to be 
higher than the standard pitch, and negative (-) settings will 
cause it to be lower.

T1–T4 (Pitch Envelope Time 1–4) ★

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

Set the level (L1–L4) for the Pitch Envelope. It determines 
how much the pitch changes from the reference pitch (the 
value set with Coarse Tune or Fine Tune on the PITCH page) 
at each point. Positive (+) settings will cause the pitch to be 
higher than the standard pitch, and negative (-) settings will 
cause it to be lower.

fig.05-65.e

Here you can make settings for the TVF (Time Variant Filter). 
This allows you to modify the brightness or thickness of the 
sound, changing the timbre of the Tone.

fig.05-66

Selects the filter type. A filter is a function that cuts off a 
specific frequency band to change a sounds brightness, 
thickness, and other qualities.

: No filter is used.

: A Low Pass Filter reduces the volume of frequencies 

above the Cutoff frequency (Cutoff parameter) in order to 
round off, or un-brighten, the sound. This is the most 
common filter used in synthesizers.

: A Band pass filter reduces the volume of frequencies 

below and above the cutoff frequency range. This can be 
useful when creating distinctive sounds.

: A High Pass Filter reduces the volume of the 

frequencies below the cutoff frequency. This is suitable for 
creating percussive sounds emphasizing their higher ones.

: A Peaking Filter emphasizes frequencies around the 

cutoff frequency by raising their level. You can use this to 
create wah-wah effects by employing an LFO to change the 
cutoff frequency cyclically.

C4

C3

C2

C1

C5

C6

C7

0

+50

+100

-50

-100

Key

Time

T1

T2

T3

T4

L3

L4

L2

L1

L0

Note off

Pitch

Time

Note on