Roland MC-808 - Page 59

59
Rhythm editing parameters
These parameters specify the depth of the filter envelope (time-variant change in cutoff frequency), and specify the shape of the envelope itself.
Resonance 0–127 Amount by which the sound in the region of the cutoff frequency will be emphasized
Increasing this value will produce a more strongly distinctive character. Raising this excessively will
cause oscillation and distortion.
Reso Velo Sens
(Resonance Velocity
Sensitivity)
-63– +63 Amount by which velocity will affect the resonance
Filter Env (Filter Envelope)
Parameter
Value Description
F-Env Depth
(Filter envelope
depth)
-63– +63 Depth of the filter envelope
Increasing this value will produce a greater effect. Negative (-) values will invert the envelope.
F-Env V-Curve
(Filter envelope
velocity curve)
FIX, 1–7 Curve by which velocity will affect the cutoff frequency
If this is “FIX,” the cutoff frequency will stay the same regardless of how the velocity varies.
F-Env V-Sens
(Filter envelope
velocity sensitivity)
-63– +63 Amount by which velocity will affect the depth of the filter envelope
F-Env T1 V-Sens
(Filter Envelope
Time 1 Velocity
Sensitivity)
-63– +63 Amount by which velocity will affect T1 (time) of the filter envelope
Specify a positive (+) value if you want to speed up the T1 time, or a negative (-) value to slow it down.
F-Env T4 V-Sens
(Filter Envelope
Time 4 Velocity
Sensitivity)
-63– +63 Amount by which the key-off velocity will affect T4 (time) of the filter envelope
Increasing this value will cause a correspondingly greater difference between slowly released and
quickly released notes. Specify a positive (+) value if you want to speed up the T4 time, or a negative
(-) value to slow it down.
F-Env Time1–4
(Filter Envelope
Time 1–4)
0–127 Filter envelope times (T1–T4)
Higher settings of these values will lengthen the time over which the next cutoff frequency level of
the envelope is reached. (For example, T2 is the time over which the level changes from L1 to L2.)
F-Env Level0–4
(Filter Envelope
Level 0–4)
0–127 Filter envelope levels (L0–L4)
Specifies the change in cutoff frequency at each point, relative to the reference level.
Parameter
Value Description
LPF BPF HPF PKG
parameter value
Level
Cutoff frequency
Frequency
High
Low
T1 T2 T3 T4
L3
L1
L2
L4
L0
Cutoff
Frequency
Time
key is
pressed
key is
released
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