FXAlg #131: 4-Tap Delay ¥ FXAlg #132: 4-Tap Delay BPM
Algorithm Reference-38
Dry Bal
The left-right balance of the dry signal. A setting of -100% allows only the left dry signal
to pass to the left output, while a setting of 100% lets only the right dry signal pass to the
right output. At 0%, equal amounts of the left and right dry signals pass to their
respective outputs.
Hold
A switch which when turned on, locks any signal currently in the delay to play until
Hold is turned off. When Hold is on, no signal can enter the delay and Feedback is set to
100% behind the scenes. Hold does not affect the HF Damping or Wet/Dry mix. A good
candidate for a KDFX FXMod mapped to a momentary foot switch.
Tap
n
Level
The amount of signal from each of the taps (
n
= 1...4) which get sent to the output. With
the Loop Lvl control, you can give different amounts of emphasis to the various taps in
the loop.
Tap
n
Bal
The left-right balance of each of the stereo taps (
n
= 1...4). A setting of -100% allows only
the left tap to pass to the left output, while a setting of 100% lets only the right tap pass
to the right output. At 0%, equal amounts of the left and right taps pass to their
respective outputs.
The following parameters are in #131 4-Tap Delay only:
Loop Crs
The coarse delay length of the Loop tap. If the feedback is turned up, this parameter sets
the repeating delay loop length. The resolution of the coarse adjust is 20 milliseconds,
but Þner resolution can be obtained using the Loop Fine parameter. The maximum delay
length is 2.55 seconds (2550ms).
Loop Fine
A Þne adjustment to the Loop tap delay length. The delay resolution is 0.2 milliseconds
(ms). Loop Fine is added to Loop Crs (coarse) to get the actual delay length.
Delay Scale
Multiplies all tap times by a common factor.
Tap
n
Crs
The coarse delay lengths of the output taps (
n
= 1...4). The resolution of the coarse adjust
is 20 milliseconds, but Þner resolution can be obtained using the Tap
n
Fine parameters.
The maximum delay length is 2.55 seconds (2550ms).
Tap
n
Fine
A Þne adjustment to the output tap delay lengths (
n
= 1...4). The delay resolution is 0.2
milliseconds (ms). Tap
n
Fine is added to Tap
n
Crs (coarse) to get actual delay lengths.
FXAlg #132: 4-Tap Delay BPM
In this Algorithm, the delay length for any given tap is determined by the tempo, expressed in beats per minute
(BPM), and multiples or fractions of beats (bts). The tempo alters all tap lengths together.
The ÒbtsÓ parameter is adjustable in increments of 1/24th of a beat, which is a useful fraction because it can divide
beats into 2, 3, 4, 6, 8, or 12 parts. The length of a delay in seconds can be calculated as T = (beats/tempo) * 60.
IMPORTANT NOTE
: KDFX has a limited amount of delay memory available (over 2.5 seconds for 4-Tap BPM).
When slow tempos and/or long lengths are specified, you may run out of delay memory, at which point the delay
length will be cut in half. When you slow down the tempo, you may find the delays suddenly getting shorter.
A repetitive loop delay is created by turning up the feedback parameter (Fdbk Level). Only the Loop tap is fed back
to the input of the delay, so this is the tap which controls the loop rate. Usually you will want the Loop tap
(LoopLength parameter) to be longer than the other tap lengths. To repeat a pattern on a 4/4 measure (4 beats per
measure) simply set LoopLength to 4 bts. The output taps can then be used to fill in the measure with interesting
rhythmical patterns. Setting tap levels allows some ÒbeatsÓ to receive more or less emphasis than others.