Kurzweil K2500RS, Musician'S Manual

Page: 44 / 530

Program Mode and the Program Editor
K2vx Program Structure
6-2
K2vx Program Structure
Programs are the K2vxÕs performance-level sound objects. TheyÕre preset sounds that can be
played on any of the 16 MIDI channels. Other synths refer to them as patches, presets, voices,
multis, etc. Each program consists of from one to three
layers (or up to 32 layers for a drum
program - see below), each of which in turn consists of a keymap and an algorithm for
processing the samples that make up the keymap. Samples are stored in the K2vxÕs ROM, or
loaded into optional RAM via Disk mode, MIDI standard sample transfer, SMDI sample
transfer, or by your own sampling efforts. Each sample is a separate digital recording of an
instrumental note, a drum, a waveform or a sound effect. The individual samples are assigned
to speciÞc key ranges and are assigned to be triggered at speciÞc attack velocities. These
assignments constitute the keymap.
When you trigger a note, the K2vx looks to the keymap of each layer of the currently active
program(s) to determine which samples to play. The sound engine then fetches the requested
samples and generates a digital signal that represents the timbres of the samples. This signal
Þrst passes through the Þve DSP functions that make up the algorithm, then through the global
effects processor (if assigned to an audio output pair that uses effects), then Þnally appears at
one or more of the audio outputs.
The layer is the K2vxÕs basic unit of polyphony, that is, each layer constitutes one of the 48 voice
channels the K2vx can activate at any time. If you have a program that consists of two layers
covering the note range from C 0 to C 8, each note you trigger will trigger two voice channels.
The Program Mode Page
ProgramMode||||Xpose:0ST|||<>Channel:1||
!!!!!!!!!!!!!!!!!!@ |199|Default|||||||||
KeyMap|Info||||||| # | 209*Dig|it|al|||||||
| Grand|Piano||||| | # | ||1|Righteous|Piano|
|||||||||||||||||| # |||2|Mondo|Bass||||||
|||||||||||||||||| # |||3|Killer|Drums||||
%%%%%%^%%%%%%^%%%%$ | | |4|Wee p ing|Gu i tar||
Octav- | Octav+ | Panic| | View|| | Chan-| | Chan+
The top line of the Program mode entry level page shows your location, the present MIDI
transposition, and the current MIDI channel.
The box at the left of the Program mode page tells you which keymap is assigned to each layer.
Layer 1 is at the top. Layers 2 and 3, if any, are listed below layer 1. If a
drum program is
selected, the box tells you how many layers it has. If a drum program is selected, and the
current MIDI channel is not a drum channel, the programÕs name will appear in parentheses in
the display, and the program will not play (more on this in the next section). The box at the left
of the display will tell you which channels are drum channels. (See the Drum Channel
parameter in Chapter 11).
The line beneath the name of the keymap indicates the keyboard range of the layer. On the
Program mode page above, for example, the layer extends from C 0 to C 8Ñthe default range.
The representation of these layer ranges is approximate; theyÕre intended to let you know if you
have a layered keyboard (lines overlapping) or a split keyboard (lines not overlapping).
What are these programs in parentheses?
While you are scrolling through different programs on various MIDI channels, you may
occasionally see a program that is in parentheses and doesnÕt make any sound. The parentheses