M-Audio MIDISPORT 8x8/s [22/52] Smpte operation

Patchbay Operation

The MIDISPORT functions as a MIDI patchbay that is capable of routing and/or

merging MIDI data from any MIDI input port to any MIDI output port. This

integrated MIDI patchbay is active whenever:

• the MIDISPORT is in a MIDI Interface Mode (USB, PC or MAC) but not in

use as a MIDI interface. This is indicated by a blinking Mode LED (USB, PC

or MAC), or

• the MIDISPORT is in Thru Mode.

Eight patchbay programs are stored internally within the MIDISPORT. A ninth

program which connects all ins to all outs is activated when the MIDISPORT is

placed in Thru Mode. The MIDISPORT remembers each of these programs

internally and will recall them each time it powers up. It will also remember the

current patchbay program number as it powers up.

The eight programs may be modified via the Remote Control software. The

current patchbay program may be selected in either of three ways: via the

Remote Control software, via the RESET pushbutton on the front panel of the

MIDISPORT, or in response to MIDI program change messages sent to MIDI In-8

on channel 16 (this last option is only available when the MIDISPORT is not in

MIDI interface mode).

The RESET pushbutton on the MIDISPORT front panel is actually a dual-

function pushbutton. If you press and release the button within a second, you

will send "reset" MIDI messages out all output ports. However, if you press the

RESET button in and continue to hold it beyond one second, it will allow you to

view and/or change the patchbay program. To simply view the current

program number, press the RESET button until 7 of the 8 MIDI IN LED’s light

up. The one LED that is not lit will indicate the program number (1-8). Quickly

release the RESET button and no changes will occur. However if you continue to

hold the RESET button in, the unit will step through the programs until you

release the RESET button. This is how you manually select a program from the

front panel.

As mentioned earlier, when the MIDISPORT is in a stand-alone mode (not being

used currently as a MIDI interface) it may accept patchbay program changes

from an external source such as a MIDI controller keyboard. To do so, simply

attach the MIDI out of the external controlling device to the MIDI In-8 of the

MIDISPORT. Then send program change messages on MIDI channel 16. This

will set the MIDISPORT program to one of its internally stored programs, 1-8.

SMPTE Operation

The MIDISPORT contains an integrated SMPTE reader/writer/regenerator that

may be used by your computer’s application to synchronize itself to the outer