6-2
Program Mode
VAST Program Structure
VAST Program Structure
You
might
want
to
take
a
look
at
Figure 6
‐
1 on page 6
‐
3,
which
depicts
the
hierarchy
of
a
VAST
program,
from
individual
samples
all
the
way
up
to
setups,
which
can
contain
up
to
16
programs.
Every
VAST
program
contains
at
least
one
layer.
A
layer
consists
of
a
keymap
and
an
algorithm
for
processing
the
samples
contained
in
the
keymap.
Each
sample
is
a
separate
digital
recording
of
some
kind
of
sound:
musical,
vocal,
industrial,
any
sound
at
all.
Individual
samples
are
assigned
to
specific
key
ranges
(from
A
2
to
D
3,
for
example),
and
are
also
assigned
to
be
triggered
at
specific
attack
velocities.
These
assignments
constitute
the
keymap.
When
you
trigger
a
note,
the
PC3K
looks
to
the
keymap
of
each
layer
of
the
currently
active
VAST
program(s)
to
determine
which
samples
to
play.
The
sound
engine
then
fetches
the
requested
samples
and
generates
a
digital
signal
representing
the
sound
of
the
samples.
This
signal
first
passes
through
the
DSP
functions
that
make
up
the
algorithm.
It
then
passes
through
the
PC3K’s
effects
processor,
and
finally
appears—with
some
level
of
effects
applied
to
it—at
one
or
more
of
the
audio
outputs.
The
layer
is
the
VAST
program’s
basic
unit
of
polyphony,
that
is,
each
layer
constitutes
one
of
the
128
voice
channels
the
PC3K
can
activate
at
any
time.
If
you
have
a
program
that
consists
of
two
layers
covering
the
note
range
from
A
0
to
C
8,
each
key
you
strike
triggers
two
voice
channels.
Note:
One
exception
to
this
structure
is
when
using
a
KVA
oscillator,
the
sound
source
for
that
layer
is
not
derived
from
a
keymap,
but
is
generated
at
the
algorithm
stage
(though
keymap
information
is
still
used
to
set
key
range
and
maximum
amplitude.)
After
this,
the
structure
is
the
same
as
described
above.
See
Editing
VAST
Programs
With
KVA
Oscillators on page 6
‐
53
for
more
details.
Содержание PC3K6
Страница 24: ...1 6 Introduction Options...
Страница 50: ...4 4 The Operating Modes Using the Modes...
Страница 58: ...5 8 Editing Conventions Special Button Functions...
Страница 130: ...6 72 Program Mode Programming Tips...
Страница 202: ...7 72 Setup Mode Recording A Setup To Song Mode...
Страница 206: ...8 4 Quick Access Mode The QA Editor...
Страница 232: ...9 26 Effects Mono Algorithms...
Страница 268: ...11 18 Master Mode Preview Sample PRVIEW...
Страница 302: ...12 34 Song Mode and the Song Editor Song Editor The EVENT Page...
Страница 328: ...14 14 Keymap and Sample Editing Editing Samples...
Страница 334: ...B 4...
Страница 370: ...D 32 PC3K Objects V 1 31 Effect Chains...
Страница 372: ...E 2 PC3K Legacy File Conversion Object Types and Conversion Details...