KEYTEK CTS 2000 Instruction Manual page 45

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Family No. 10 : DCF Display Fam. DCF ENVELOPE
Group : DCA & DCF ENVELOPE GENERATORS
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ATTENTION : the functions of the DCF ENVELOPE GENERATOR family are closely linked to the CUTOff
and E.G. LEVEL parameters of the FILTER family , in fact :
if CUTOFF = 120 and/or E.G. LEVEL greater than 0
or CUTOFF = 0 and/or E.G. LEVEL less than 0
or only E.G. LEVEL = 0
the functions of the DCF ENVELOPE GENERATOR family will have no effect.
Parameter : ATTACK
Power meter : A
Display Par. ATTACK TIME F ( z )
OLD xx NEW yy
Value xx/yy : from 1 to 32
Function : Determines the time it takes for the filter of each item to reach the frequency of
determined by the E.G.LEVEL parameter, by an initial cut-off frequency
determined by the Cut-Off parameter (from the moment the button is pressed).
Parameter : DECAY
Power meter : B
Display Par. DECAY TIME F ( z )
OLD xx NEW yy
Value xx/yy : 0 to 31 + inf.
Function : Determines the time it takes the filter of each item to return from a frequency of
obtained at the end of the Attachment phase, at a cut-off frequency, determined by
by the Break Point parameter. If the Break Point value is 1 (minimum value) the
Decay will bring the filter cut-off frequency to the value set by the Cut-Off,
Conversely, if the Break Point value is 64 (maximum value) the Decay function
will be non-existent.
If the Decay value is set to inf. (infinity) the cut-off frequency of the filter
will remain at the value set by the E.G.LEVEL parameter until the key is released, and
not