Yamaha TX 816 - Page 71

An
abbreviation
for
Random
Access
Memory.
In
a computer,
the
main
memory
is
RAM
a RAM, where
programs
are
stored
and are
always
available,
prior
to
being
per-
manently
stored on
tape or floppy
disk.
Applied
to
the DX7,
RAM
does not
refer
to
the internal
memory
(although
it is, in
fact,
a RAM).
It
refers
to the
RAM cartridges
which
are
purchased
separately
from the
DX7.
These
cartridges
hold the
voice
data for
32
voice?,
and
are truly
random
access
because
each voice
can be
loaded
into
or
read fom
the
cartridge
sopeparatety
from
the others, DX7
RAM
cartridges
differ
from
conventional
RAM's in
that
they retain
theirmemory
after
power
is turned
off,
without
the
use of
a basckup
battery.
This
is
due
to their
special EEPROM
(Electrically
Erasable
Programmable
Read Only
Memory)
technologey.
RAM
cartridges
can not
be
used to
store function
data from
the DX7,
but
function
data
may
be stored on RAM
cartridges
using
the
DX5
or DX1
. However,
function
data
may
be stored
on
the QXI's floppy
disk.
Indicates
the
reception
of
data at
the
same
speed at which
it
is
created.
With the
Yamaha QX1
Digital
Sequence
Recorder,
real time
refers
to the
fact that
the QX1
can
accept the
data created
by a live
performance
on
a MIDI
instrument,
no
matter
how
rapid
or
complex
the
music
may
be.
An
abbreviation for
Read Only
Memory. Data
cannot
be
entered
into
this kind
of
memory;
it
can only be
read from
it. The
DX
synthesizers
and
KX
remote
keyboards
contain
ROMs
(not user
accessible)
.The
DX1
is
cupplied with
2
per-programmed
ROM cartridges
containing
64 voices
each,
and a
Performance
ROM
cartridge
containing
64
voice
number/function
data
combinations.
These
cartridges
are not
user
programmable-
-they
have
fixed memories.
A
word
meaning
the
transfer
of
data from
a temporary
store to
a permanent
store.
Save
For
example,
you can "save" DX7
voice
data on a RAM
cartridge,
or
if you
are
using
the CX5M
Music Computer
with
the FM
Music
Composer
program
carttidge,
you
can
"save" the
music
data onto
a
standard
cassette
tape.
~
A
device that
records
data in
a specific order,
so
that it
can
be rec^alled
in
its original
Sequencer
sequence,
and
edited or
rearranged.
The
Yamaha
QX1 Digital
Sequence
Recorder
is
a sophisticated
sequencer.
It can
convert
a live
(real time)
performance
On
a
MIDI
instrument
into
data which
is
stored in
sequence
and
can
be
played
back
at
any
tempo
or
in
any
key,
and
may
be edited
to any
degree.
It
can also
accept
music
data one note
at a
time
from its
own
computer-type
keyboard,
so
that
music
may
be programmed
in
by
users who
cannot
play a
music
keyboard.
"
Computer-controlled
instruments
such
as the TX816
usually have
various
modes
Sub'ITiOde
in which
they
function.
Each
mode contains
several
sub-modes,
which
enable
the
instrument
to carry
out a specific
function.
For
example,
the
Attenuate
Output
Level
sub-mode in
the EDIT
mode
of the TX816
lets
you alter the
output level of
any
individual program
in
a
TF1
module.
The
TX816
has
a total
of 14
different
sub-
modes, alt
entered
by pressing
SW3.
Applies
to formats
or commands
that
function
only
within
a given
system.
For
example,
the
TX816
can
be
played
by
virtually
any MIDI
instrument,
but its
voices
can
only be
edited
by
DX
synthesizers,
due
to the
System
Exclusive
Information
(specific MIDI
commands)
that is
required
to alter
voice
and
function
data. A
DX
keyboard
can be
switched
between
SYS INFO
UNAVAIL
(System Exclusive
In-
formation
Unavailable-
-functions like
any basic MIDI
instrument
to
SYS INFO
AVAIL
(System Exclusive
Information
Abailable--can
transmit MIDI
commands
exclusive
to
Yamaha
digital
instruments)
for editing
purposes.
Real
Time
ROM
System
Exclusive
Information
70