Kurzweil K2500 Reference Manual page 42

FXAlg #133: 8-Tap Delay ¥ FXAlg #134: 8-Tap Delay BPM
Xcouple
HF Damping
Dry Bal
Hold
Tapn Level
Tapm/-n Bal
The following parameters are in #133 8-Tap Delay only:
Loop Crs
Loop Fine
Delay Scale
Tapn Crs
Tapn Fine
FXAlg #134: 8-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 5 seconds for 8-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.
Algorithm Reference-42
8-Tap Delay is a stereo effect. The cross-coupling control lets you send the feedback from
a channel to its own input (0% cross-coupling) or to the other channelÕs input (100%
cross-coupling) or somewhere in between. This control has no effect if the Fdbk Level
control is set to 0%.
The -3 dB frequency in Hz of a one-pole lowpass Þlter (-6 dB/octave) placed in front of
the delay line. The Þlter is speciÞed for a signal passing through the Þlter once. Multiple
passes through the feedback will cause the signal to become more and more dull.
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.
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. It is an
excellent candidate for a KDFX Modulation routing using a momentary foot switch as a
source.
The amount of signal from each of the taps (n = 1...8) which gets sent to the output.
The left/right balance of each of the stereo taps. The balances are controlled in pairs of
taps: 1 & 5, 2 & 6, 3 & 7, and 4 & 8. The balance controls work in opposite directions for
the two taps in the pair. When the balance is set to -100%, the Þrst tap of the pair is fully
right while the second is fully left. At 0%, equal amounts of the left and right taps pass to
their respective outputs.
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 5.10 seconds (5100ms.
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.
Multiplies all tap times by a common factor.
The coarse delay lengths of the output taps (n = 1...8). The resolution of the coarse
adjust is 20 milliseconds, but Þner resolution can be obtained using the Tapn Fine
parameters. The maximum delay length is 5.1 seconds (5100ms).
A Þne adjustment to the output tap delay lengths (n = 1...8). The delay resolution is 0.2
milliseconds (ms). Tapn Fine is added to Tapn Crs (coarse) to get actual delay lengths.