E-Mu orbit v2 Manuale Utente

Orbit V2 Operation Manual

A Orbit sound set consists of sample data (sound ROMs), plus addi-
tional instrument data in the program ROMs. Each sound set has a
unique ID number. The sound sets for Orbit are #11 & #12.

It is necessary to include the sound set number as part of the instru-
ment number when exchanging data. The complete instrument num-
ber contains two fields: bits 8-12 specify the sound set (0-31) and bits
0-7 specify the instrument within the sound set (0-255).

Instrument Bit Fields:

12

 8

7

   0

<— sound set —>   <——— instrument # ———>

(5 bits)

(8 bits)

Within any given sound set, the first instrument is #1 and #0 selects
“None”.

The “magic numbers” 2816 & 3072 represents the start number for
the two banks of Orbit instruments. To calculate the complete instru-
ment number follow the instructions below.

SysEx Instr. No. (Bank 1) = 2816 + Orbit Instr. No.

Next you must convert the SysEx instrument number to a 14-bit MIDI
number. See the information on the following pages.

Example:
Suppose we want to change the instrument to I003 Bass Hum

1)

2816 + 3 = 2819  (2816 + Instr. No.)

2)

2819 

÷

 128 = 22 r-3 = 22 (ignore remainder)

3)

22 in Hex = 16 = msb

4)

remainder 3 in Hex = 03 = lsb

5)

SysEx Instrument Number =   lsb

msb

The complete message to change the primary instrument to #03: