Roland VIMA JM-8 Owner's Manual download pdf (Page 91)

SOUND EDIT for Tones

VIMA JM-8

SOUND EDIT for Tones

The “SOUND EDIT” parameters allow you to change

some aspects of the sounds (Attack, Decay, Release, and

so on).

(1) See “General procedure” on p. 87 for how to select

the “SMF MAKEUP TOOLS” environment.

(2) Press the [SOUND¥EDIT] display button on any of

the “SMF MAKEUP TOOLS” pages.

This takes you to the following page where you can

make more refined changes to the selected instru-

ment (see “SOUND EDIT for Drum Sets” on p. 92 if

you selected a Drum Set).

(3) Press the display field of the parameter you want

to edit and use the dial to set the desired value.

You can also press the dial to call up a numeric pad

window. Use the display buttons of that window to

enter the desired values and confirm with the [ENTER]

display button.

CUTOFF: This filter parameter allows you to make the

selected sound darker or brighter. Positive Cutoff set-

tings mean that more overtones will be allowed to

pass, so that the sound becomes brighter. The further

this value is set in the negative direction, the fewer

overtones will be allowed to pass and the sound will

become softer (darker).

Note: For some sounds, positive (+) Cutoff settings will

cause no noticeable change because the preprogrammed

Cutoff parameter is already set to its maximum value.

RESO: This is a parameter one invariably associates

with a synthesizer. When the Resonance value is

increased, the overtones in the area of the cutoff fre-

quency will be emphasized, creating a sound with a

strong character.

Note: For some sounds, negative (–) RESO settings may

produce no noticeable change because the Resonance is

already set to the minimum value.

The following parameters allow you to set the

sound’s “envelope”. The envelope parameters affect

both the volume (TVA) and the filter (TVF). The cutoff

frequency will rise as the envelope rises and fall as

the envelope falls.

ATTACK: This parameter adjusts the onset of the

sound. Negative values speed up the attack, so that

the sound becomes more aggressive.

DECAY: This parameter adjusts the time over which

the sound’s volume and Cutoff frequency fall from

the highest point of the attack down to the sustain

level.

Note: Percussive sounds usually have a sustain level of “0”.

Piano and guitar sounds are in this category. Holding the

keys for a long time will have little effect on the duration

of the notes you are playing, even if you select a high value

here.

RELEASE: This parameter adjusts the time over which

the sound will decay after the note is released until it

is no longer heard. The cutoff frequency will also fall

according to this setting.

Use the following three parameters if you think the

instrument in question has too much (or could use a

little more) vibrato.

Note: Some sounds already contain natural (sampled)

vibrato whose depth or speed cannot be changed.

VB RATE: This parameter adjusts the speed of the

pitch modulation. Positive (+) settings make the pre-

set pitch modulation faster and negative (–) settings

make it slower.

VB DEPTH: This parameter adjusts the intensity of

the pitch modulation. Positive (+) settings mean that

the “wobble” becomes more prominent, while nega-

tive (–) settings make it shallower.

VB DELAY: This parameter adjusts the time required

for the vibrato effect to begin. Positive (+) settings

increase the time before vibrato will begin and nega-

tive settings shorten the time.

If necessary, press the [SAVE] display button to save

your settings (page 95).

Characteristics of a low-pass ﬁlter

Cutoff frequency

Frequency

Setting

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