Roland MC-909 owner manual Filter Env Filter Envelope, Value Description

Patch Edit

Parameter	Value	Description
F-Env T4 V-Sens	-63– +63	Amount by which the speed at which you release the pad (key-off velocity) will affect T4 (time) of the
(Filter Envelope		filter envelope
Time 4 Velocity		Increasing this value will cause a correspondingly greater difference between slowly released and
Sensitivity)		quickly released notes. Specify a positive (+) value if you want to speed up the T4 time, or a negative
		(-) value to slow it down.

Filter Env (Filter Envelope)

These parameters specify the depth of the filter envelope (time-variant change in cutoff frequency), and specify the shape of the envelope itself.

T1	T2	T3	T4
	L1
L0	L2		L3
Cutoff			L4
Frequency
key is			Time
			key is
pressed			released
Parameter	Value		Description

F-Env Depth	-63– +63	Depth of the filter envelope
(Filter envelope		Increasing this value will produce a greater effect. Negative (-) values will invert the envelope.
depth)
F-Env Time KF	-100– +100	Amount by which the note you play (relative to C4) will affect the filter envelope times (T2–T4)
(Filter Envelope		Increasing this value will cause greater change to occur. Positive (+) values will cause the times to be-
Time Keyfollow)		come shorter as you play toward the right of the keyboard. Conversely, negative (-) values will cause
		the times to become longer.

Time
						+100
						+50
						0
						-50
						-100	Key
C1	C2	C3	C4	C5	C6	C7

F-Env Time1–4 #	0–127	Filter envelope times (T1–T4)
(Filter Envelope		Higher settings of these values will lengthen the time over which the next cutoff frequency level of
Time 1–4)		the envelope is reached. (For example, T2 is the time over which the level changes from L1 to L2.)
		* Realtime modify knob [A] adjusts Time 1, knob [D] adjusts Time 3, and knob [R] adjusts Time 4.
F-Env Level0–4 #	0–127	Filter envelope levels (L1–L3)
(Filter Envelope		Specifies the change in cutoff frequency at each point, relative to the reference level.
Level 0–4)		* Realtime modify knob [S] adjusts Level 3.

Patch/Sample Mode

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