Version OS 1.0
8 Single/Multi Mode
The Alpha Base has two memory models: Single Mode and Multi Mode. The following
picture shows in a simplified graphic example that the Single Kits have a linear memory
order and the Multi Sets a vectorized order:
The Single Kits are 128 ascending memory locations containing all the data for the
sounds of all 11 instruments and the FX.
In fact, the Multi Sets are nothing but pointers (vectors) to an instrument out of 128
Single Kits. Every Multi Mode Kit is a combination of 11 instrument pointer numbers that
can each be taken from any Single Kit you desire.
So if you play an instrument in Multi Mode, the actual data buffer is read from the
Single Kit's instrument the instrument number points to.
The great advantage of the Multi Mode is that you can select instruments of your choice
from a pool of different kits and switch between your favourite sounds in a setup when
you are looking for sounds. Maybe you like the kick drum of kit 1 most but want to find
a clap sound or snare drum that fits best to that kick drum in your desired track and it's
the clap from kit 23.
In either modes, editing and sequencing is possible. In single mode you store the edited
parameters into the very memory location you currently are (e.g. kit 022). In Multi
Mode, the sound edits are stored into the specific instruments of the kits the Multi Set
points to, plus the selection of instruments of the Multi Set itself.
ALPHA BASE Operating Manual
71
KD
Singe/Multi Mode Scheme (simplified example)
Kit0
MB
OH...FM
KD
KD
CH
Multi
Set0
KD
Kit1
MB
OH...FM
KD
KD
CH
KD
Kit2
MB
OH...FM
KD
KD
CH
KD
MB Instr 1
FM Instr 2
KD
KD Instr 0
CH Instr 0
Multi
Set1
KD
MB Instr 0
FM Instr 1
KD
KD Instr 2
CH Instr 1
KD
Kit...
127
MB
OH...FM
KD
KD
CH
Multi
Set...
127
KD
MB Instr x
FM Instr x
KD
KD Instr x
CH Instr x
Single Kits (linear)
Multi Sets (vectorized)
Multi
Set1
KD
MB Instr 2
FM Instr 0
KD
KD Instr 1
CH Instr 0
