Yamaha TX 816 Owner's Manual 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