Korg EX-800 Owner's Manual page 18

DECAY (Rate)
Determines the rate at which the envelope contour
falls from the maximum (Attack) level to the BREAK
POINT level, after the ATTACK phase is completed.
• If BREAK POINT equals 3 !, the DECAY parameter
has no effect. There needs to be at least a !
ber difference in starting & ending Levels for Rate
parameters to have an effect (the Attack peak is al­
ways 3 ■ • ) The bigger the difference, the longer the
actual time produced by a given DECAY value.
* For example, assume DECAY is
POINT (B.P.)= 30, the actual Decay cycle lasts
about 0.5 seconds. With B.P. = .?3, it lasts about
1.2 seconds (DECAY= 3 ,'). AtB.P.= c S, it lasts
about 3 seconds, and at
* SLOPE and RELEASE are similarly affected by
changes to BREAK POINT and/or SUSTAIN lev­
els. The bigger the defference between starting
& ending levels, the longer the actual time
produced by a particular Rate value.
v _
c z *
';fj BREAK P. (Break Point, Level)
#
J J i ii
o i
Determines the envelope level at which the Decay rate
changes to the Slope rate. This allows complex two-
part decay or decay/attack transients to be created
(see Slope description below for examples).
• If the Break Point level is set to maximum (
the extra envelope stage is effectively disabled, and
the envelope becomes a conventional ADSR type.
(In this case, SLOPE is used instead of DECAY to
set the actual decay rate from the ATTACK peak to
the SUSTAIN level.)
• You can also produce a regular ADSR by setting
BREAK POINT to the same value as SUSTAIN lev­
el. This method allows DECAY to control the decay
rate, but requires you to change BREAK POINT
whenever you change SUSTAIN.
SLOPE (Rate)
Determines the rate at which the envelope contour
moves from the BREAK POINT level to the SUSTAIN
level.
• If the Break Point level is LOWER than the Sustain
level, then SLOPE functions as a second ATTACK
(the envelope moves UP towards the Sustain level).
• If the Break Point level is HIGHER than the Sustain
level, then SLOPE functions as a second DECAY
(the envelope moves DOWN towards the Sustain
level).
num­
3 with BREAK
,■ '[!, about 5 seconds.
3
;) ,
Slope has no effect when Break Point and Sustain
are set to the same value.
Compresor Guitar Sound,
using a second attact.
c w » r
r
I' S SUSTAIN (Level)
i j
0 Z *
Determines the constant envelope level at which the
sound is sustained after the Attack, Decay and Slope
phases are completed, for as long as the key is kept
depressed.
RELEASE (Rate)
Determines the rate at which the envelope contour
falls from the Sustain level to zero after the key is
released.
• If the envelope has not yet reached the Sustain lev­
el (if still in the Attack, Decay or Slope phase), then
the envelope level will fall from its CURRENT value
to zero at the Sustain rate.
• As with Decay and Slope, changing the Sustain level
automatically changes the actual Release TIME (be­
cause Release is a rate.).
Break
Attack
Deacy
Slope
point
time
time
time
level
Highest
Long
Long Long long
Short Short Short
0
Piano-type Envelope, using a
second decay.
Sustain Release
VALUE
time
level
Highest
long Long
31
0
Short 0
19