E-Mu Vintage Keys Operation Manual page 113

MIDI SPECIFICATIONS
••• Vintage Keys will receive
Proteus presets, but will fill in
the extra parameters with
default values and set
instruments to "None".
••• Running Status is
supported in Vintage Keys.
There is only one edit
buffer which is for the current
preset (the preset shown in
the display). Only one preset
at a time can be edited via
SysEx commands and
changing the current preset
erases the edit buffer.
MIDI SYSEX COMMANDS
For system exclusive commands, the following format is used:
F0
18
0A
dd
cc
...
F7
SysEx Editing
Preset and setup parameters may be edited individually using system
exclusive commands. The preset being edited is the active preset (the
preset on the basic or global channel and the one which is shown in
the LCD). The value of a given parameter may be changed by sending
a parameter value command. The value of a parameter may be read by
sending a parameter value request, to which the machine will respond
by sending back the parameter value. Please note that there is only one
edit buffer
Two MIDI bytes (lsb, msb) are required for each 14 bit data word. Bits
0-6 are sent first, followed by bits 7-13 in the next MIDI byte. All data
words are signed 2's complement values with sign-extension out to the
most significant bit (bit 13). This convention applies to all data words,
regardless of the parameter's value range.
Preset data may also be transmitted or received in a single block (one
complete preset) using system exclusive commands. A preset data
request may be issued by a host computer, to which the machine will
respond sending the data block for the requested preset. Conversely,
the computer may send new preset data which will replace the speci-
fied preset currently in the machine. Additionally, a front panel com-
mand will transmit one or all user presets for backup onto an external
sequencer. These presets may be restored by simply playing back the
sequence into the machine.
Warning: When transferring preset banks and tuning table data back
and forth from Vintage Keys to a computer, the data should be re-
corded as you would a regular sequence. Sending the data in one huge
chunk will clog the input buffer on Vintage Keys unless a time period
of approximately 100 mS is inserted between each preset.
104 Vintage Keys Operation Manual
system exclusive status byte
E-mu ID byte
product ID byte (will also respond to ID 04 - Proteus)
device ID byte
command byte
data bytes
EOX