Roland BK-5OR Owner's Manual page 80

Backing Keyboard BK-5 OR
Menu options
Reverb
Use this parameter to set the reverb send level. Nega-
tive values decrease the current reverb send level,
positive values increase it. (This is a relative setting
that is added to, or subtracted from, the original set-
ting.)
Parameter Setting
Reverb -127~0~+127
Chorus
Use this parameter to set the chorus send level. Neg-
ative values decrease the current chorus send level,
positive values increase it. (This is a relative setting
that is added to, or subtracted from, the original set-
ting.)
Parameter Setting
Chorus -127~0~+127
Panpot
Use this parameter to change the stereo placement
of the selected instrument. "0" means "no change",
negative (–) values shift the instrument towards the
left and positive (+) values shift it towards the right.
Parameter Setting
Panpot -127~0~+127
NOTE
In the case of Drum Sets, this setting applies to all drum/
percussion instruments. There is also a parameter that can
be set for specific drum instruments. See page 82.
Octave (T)
Use this parameter to transpose the selected instru-
ment up or down by up to 4 octaves.
Parameter Setting
Octave -4~0~+4
Velocity
This parameter allows you to modify the velocity
range of the instrument in question. "0" means that
the recorded velocity values are left untouched, neg-
ative values reduce all velocity values by the same
amount (leaving differences between notes intact),
while positive settings increase all velocity values.
Parameter Setting
Velocity -127~+127
Cut Off
This filter parameter allows you to make the selected
sound darker or brighter. Positive settings mean that
more overtones are allowed to pass, so that the
sound becomes brighter. The further this value is set
80
in the negative direction, the fewer overtones will be
allowed to pass and the sound will become softer
(darker).
Characteristics of a low-pass filter
Setting
Cutoff frequency
Parameter Setting
Cut Off -127~+127
NOTE
For some sounds, positive (+) "Cut Off" settings will cause
no noticeable change because the preprogrammed "Cut
Off" parameter is already set to its maximum value.
Resonance
This is a parameter one invariably associates with a
synthesizer. When the "Resonance" value is increased,
the overtones in the area of the cutoff frequency will
be emphasized, creating a sound with a strong char-
acter.
Parameter Setting
Resonance -127~+127
NOTE
For some sounds, negative (–) "Resonance" 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 (T)
This parameter adjusts the onset of the sound. Nega-
tive values speed up the attack, so that the sound
becomes more aggressive.
Parameter Setting
Attack -127~+127
Decay (T)
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.
Parameter Setting
Decay -127~+127
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.
Frequency