Kurzweil K2600 - MUSICIANS GUIDE REV A PART NUMBER 910330 CHAP 9 Effects Manual page 13

The FXBus Page
Now press Edit, and this page appears:
EditStudio:FXBUS|Size:1|Free:3|<>FXBus:1
FX1||200*4|Tap|BPM|||||||||Aux||||Mix
Wet/Dry||||:35%wet|||Lvl:3.5dB|Lvl:-4.5d
Tempo||||||:120BPM|||Bal:0%||||Bal:0%
Allocation:Auto
<more||INPUT||FXBUS||AUXFX||OUTPUT|more>
This is the FXBus page for FXBus1. It is where an FX preset is assigned to the FXBus. Put the
cursor on the box containing 200*4 Tap BPMÑthis is the current FX preset, a four-tap delay
whose speed is expressed in terms of tempo (Beats Per Minute). Use the Alpha wheel to scroll
through the many other FX presets that come with KDFX. Like all K2600 objects, those that are
in RAM (like this one) will have an asterisk in their name, and those that are in ROM will not.
There are three more FXBuses, which you can view by pressing the Chan/Bank buttons. In this
studio they are all empty (No Effect).
Go back to 4 Tap BPM on FXBus1, and play the piano sound from your keyboard. The arrow
next to FX1 ßashes, showing that there is audio passing through this FXBus. The arrow keeps
ßashing as long as the FXBus is processing audio.
Below the FX preset selector is a Wet/Dry control, which determines how much of the signal
will pass through the FX preset. Below that is a Tempo control, which sets the timing of the
delays. These parameters are called Òbus overrides,Ó because they override parameters which
are actually inside the FX preset itselfÑthese parameters can be adjusted from inside the
FX preset, or they can be set from out here, where they are much more convenient. If you change
FX presets, these values change, because their values inside the various FX presets are all
different. More about bus overrides a little later in this chapter.
Levels
To the right are two sets of level controls from the FX preset to the output mixer. The Þrst set, Lvl
and Bal, determines how much of the sound will go to the global or Auxiliary effects bus, and
how its two channels are balanced. On this FXBus, the signal to the Aux bus is boosted 3.5 dB.
The second set determines how much of the sound goes to the Mix bus. On this FXBus, the Mix
signal is attenuated -4.5 dB.
Allocation
The Allocation parameter determines how many processor allocation units (PAUs) are reserved
for this FXBus. The number of PAUs an FX preset uses is dependent on the algorithm at the core
of the FX preset. Algorithms can use anywhere from 1 to 4 PAUs, depending on their
complexity. As you scroll through the FX presets, the number of PAUs required by each one is
shown on the top line of the display (Size:), along with the number of PAUs that are available
(Free:) for other algorithms.
The four insert FXBuses have 4 PAUs to share among them, so if any bus uses more than one
PAU, it means that some buses cannot be assigned an FX preset. This is a very common
situation, as you shall see. The Auxi bus has its own set of 3 PAUs, which are completely
independent and are not shared with the insert FXBus PAUs.
Basic Effects Mode
A Tour of Effects Mode
9-13