Specifications

The I/O Identifier

While each DSP has eight inputs and eight outputs, it’s not necessarily the case that every

program will utilize all eight inputs or all eight outputs of the DSP it’s running on. Every

program is unique and uses only the number of inputs and outputs that are necessary for

its function. For instance, a program that synthesized sound would not need any inputs!

A program that modulated one stereo signal with another would need four inputs (two for

the carrier and two for the modulator) but only two outputs (for the result of the

modulation). Again, the function of a program determines how many inputs and outputs

are utilized on the DSP running the program.

Notice that to the right of every program name

in the

PROGRAM area is a two-digit number

(press the

PROGRAM key to get there). This

two-digit number is known as the "I/O

Identifier." In the case of the program "BasicRoom" shown to the right, the two digit

number is "24." In the case of the program "Compressor_8" shown to the right, the

two-digit number is "88." The first digit indicates how many inputs are utilized, and the

second digit indicates how many outputs are utilized. If the "I/O Identifier" for a

program were "13," DSP input 1 would be used while inputs 2 through 8 were dead, and

DSP outputs 1, 2, and 3 would be used while outputs 4 through 8 were dead. A program

will utilize the same number of inputs and outputs regardless of whether it is loaded on

DSP A or DSP B.

A small number of programs have no I/O identifier. See .

If the I/O Identifier is not

visible on page 69 for more information.